Group Meetings Schedule
2018
Meet on every Wednesday 7pm Pittsburgh time (Thur. 8am Beijing time) unless noted otherwise.
Jan 10, Biao Huang, Wednesday 7:00 pm pitt time ( Jan 11, 8:00 am Beijing time)
Experimental Realization of a Relativistic Harmonic Oscillator Ref: K. M. Fujiwara et. al., arxiv: 1712.09501 (David Weld’s group at UCSB)
Jan 17, Haiyuan Zou, Wednesday 7:00 pm pitt time ( Jan 18, 8:00 am Beijing time) Quantum quench in integrable systems Ref: V Alba and P Calabrese, PNAS 114 7947 (2017)
Jan 24, Ahmet Keles, Wednesday 7:00 pm pitt time ( Jan 25, 8:00 am Beijing time) High-temperature pairing in a strongly interacting two-dimensional Fermi gas Puneet A. Murthy, Mathias Neidig, Ralf Klemt, Luca Bayha, Igor Boettcher, Tilman Enss, Marvin Holten, Gerhard Zrn, Philipp M. Preiss, Selim Jochim Science ean 5950 (2017) arXiv:1705.10577
Jan 31, Max Arzamasovs, Wednesday 7:00 pm pitt time ( Feb 1, 8:00 am Beijing time) Observation of a Degenerate Fermi Gas Trapped by a Bose-Einstein Condensate B. J. DeSalvo, K. Patel, J. Johansen, and C. Chin, PRL 119, 233401 (2017)
Feb 7, Peizhi Mai(University of California, Santa Cruz, Senior PhD), Wednesday 7:00 pm pitt time ( Feb 8, 8:00 am Beijing time) Theory of the t-t’-J model in low dimensions: low energy properties New J. Phys. 20 013027 (2018) arXiv:1712.05396 (2017)
Feb 14, Yangqian Yan (Purdue University, Post-Doc), Wednesday 7:00 pm pitt time ( Feb 15, 8:00 am Beijing time)
Feb 21, Xuguang Yue, Wednesday 7:00 pm pitt time ( Feb 22, 8:00 am Beijing time)
Feb 28, Biao Huang, Wednesday 7:00 pm pitt time ( Feb 29, 8:00 am Beijing time)
Mar 07, Haiyuan Zou, Wednesday 8:00 pm pitt time ( Mar 08, 8:00 am Beijing time)
Mar 14, Xiaopeng Li (Fudan University, former group member), Wednesday 8:00 pm pitt time ( Mar 15, 8:00 am Beijing time)
2017
Meet on every Wednesday 7pm Pittsburgh time (Thur. 8am Beijing time) unless noted otherwise.
Jan 4, Xuguang Yue, Wednesday 7:00 pm pitt time ( Jan 5, 8:00 am Beijing time)
A Superradiant Topological Peierls Insulator inside an Optical Cavity F. Mivehvar, H. Ritsch, and F. Piazza, arXiv:1611.04876
Jan 11, Biao Huang, Wednesday 7:00 pm pitt time ( Jan 12, 8:00 am Beijing time) Experiment for Interacting Hofstadter Model Ref: M. Eric Tai et. al. (M. Greiner’s group), arxiv: 1612.05631
Jan 18, Yonggang Tan, Wednesday 7:00 pm pitt time ( Jan 19, 8:00 am Beijing time) Practical device-independent quantum key distribution
Jan 25, Ahmet Keles, Wednesday 7:00 pm pitt time ( Jan 26, 8:00 am Beijing time) Semisynthetic zigzag optical lattice for ultracold bosons, arxiv: 1610.00709 (2016)
Feb 1, Haiyuan Zou, Wednesday 7:00 pm pitt time ( Feb 2, 8:00 am Beijing time) Quantum effect in frustrated zigzag chain
Feb 8, Max Arzamasovs, Wednesday 7:00 pm pitt time ( Feb 9, 8:00 am Beijing time) Measuring Topological Number of a Chern-Insulator from Quench Dynamics H. Zhai group, including Jinlong arXiv:1611.03304
Feb 15, Xuguang Yue, Wednesday 7:00 pm pitt time ( Feb 16, 8:00 am Beijing time) Quasiparticle excitations in a strongly interacting BEC S. Papp, et al., Phys. Rev. Lett. 101, 135301 (2008) R. Lopes, et al., arXiv:1702.02935
Feb 22, Biao Huang, Wednesday 7:00 pm pitt time ( Feb 23, 8:00 am Beijing time) Topological Hopf Insulators Joel Moore, Ying Ran, Xiao-Gang Wen, “Topological Surface States in Three-Dimensional Magnetic Insulators”, PRL 101, 186805 (2008)
Mar 1, Ahmet Keles, Wednesday 7:00 pm pitt time ( Mar 2, 8:00 am Beijing time) Observation of a non-Abelian Yang Monopole: From New Chern Numbers to a Topological Transition S. Sugawa, F. Salces-Carcoba, A. R. Perry, Y. Yue and I. B. Spielman arXiv:1610.06228 (2016)
Mar 8, Jian-song Pan, Wednesday 7:00 pm pitt time ( Mar 9, 8:00 am Beijing time) Vortex-core structure in a mixture of Bose and Fermi superfuids
(US Time Changes)
Mar 15 (Skipped due to March meeting)
Mar 22, Haiyuan Zou, Wednesday 8:00 pm pitt time ( Mar 23, 8:00 am Beijing time) Confinement in a 1D quenched system Ref:M Kormos, M Collura, G Takacs, and P Calabrese Nature Physics 13, 246 (2017)
Mar 29, Max Arzamasovs, Wednesday 8:00 pm pitt time ( Mar 30, 8:00 am Beijing time) Majorana Zero Modes Protected by Hopf Invariant in Topologically Trivial Superconductors Z. Yan, R. Bi, Z. Wang, arXiv:1701.02558v2
Apr 5, Biao Huang, Wednesday 8:00 pm pitt time ( Apr 6, 8:00 am Beijing time) Designer curved-space geometry for Weyl metamaterials arxiv: 1703.10408, A. Westrom and T. Ojanen
Apr 12, Xuguang Yue, Wednesday 8:00 pm pitt time ( Apr 13, 8:00 am Beijing time) Emergent eigenstate solution and emergent Gibbs ensemble for expansion dynamics in optical lattices L. Vidmar, W. Xu, and M. Rigol, et al., arXiv:1704.01125
Apr 19, Ahmet Keles, Wednesday 8:00 pm pitt time ( Apr 20, 8:00 am Beijing time) Lattice like symmetries in time for periodically time dependent systems
Apr 25, Haiyuan Zou, Tuesday 8:00 pm pitt time ( Apr 26, 8:00 am Beijing time) (The talk is shifted for the PQI events on Wednesday, https://www.pqi.org/pqi2017) Higgs and Goldstone modes in a supersolid quantum gas. Ref: J Leonard, A morales, P Zupancic, T Donner and T Esslinger, arXiv: 1704.05803
May 3, Max Arzamasovs, Wednesday 8:00 pm pitt time ( May 4, 8:00 am Beijing time) Negative-Mass Hydrodynamics in a Spin-Orbit–Coupled BoseEinstein Condensate M. A. Khamehchi, K. Hossain, M. E. Mossman, Y. Zhang, Th. Busch, M. McNeil Forbes, and P. Engels, PRL 118, 155301 (2017)
May 30, Xuguang Yue, Tuesday 8:00 pm pitt time ( May 31, 8:00 am Beijing time) (This week's meeting is shifted because of time conflict with a Cornell summer school our group member(s) will attend.) Recurrences in an isolated quantum many-body system Jörg Schmiedmayer Group, arXiv:1705.08231
Jun 28, Biao Huang, Wednesday 8:00 pm pitt time ( Jun 29, 8:00 am Beijing time) Experimental Realization of Long-Range Antiferromagnetism Markus Greiner Group, arXiv: 1612.08436, Nature 545, 462 (2017)
Jul 25, Haiyuan Zou, Tuesday 8:00 pm pitt time ( Jul 26, 8:00 am Beijing time) (This week's meeting is shifted because of Pitt-PKU workshop in Fragrant Hill coming up in the same week) Bloch oscillations in the absence of a lattice Ref: F Meinert, M Knap, E Kirilov, K Jag-Lauber, M Zvonarev, E Demler, H Nagerl. Science 356, 945 (2017) Aug 21, Ahmet Keles, Mondy 8:00 pm pitt time ( Aug 22, 8:00 am Beijing time) (This week's meeting is shifted because of the travel plan of Prof. Vincent Liu) A stripe phase with supersolid properties in spin–orbit-coupled Bose–Einstein condensates Ketterle Group, Nature 543, 91–94 (2017)
Aug 30, Max Arzamasovs, Wednesday 8:00 pm pitt time ( Aug 31, 8:00 am Beijing time)
Observation of Efimov molecules created from a resonantly interacting Bose gas
arXiv:1704.01206. E. Cornell group + Z. Hadzibabic
Sep 6, Jiansong Pan, Wednesday 8:00 pm pitt time ( Sep 7, 8:00 am Beijing time) Discrete Time-Crystalline Order in Cavity and Circuit QED Systems Z. Gong et al., arXiv:1708.01472 (2017)
Sep 13, Xuguang Yue, Wednesday 8:00 pm pitt time ( Sep 14, 8:00 am Beijing time) Thermalization near integrability in a dipolar quantum Newton’s cradle Tang et.al., arXiv:1707.07031
Sep 20, Biao Huang, Wednesday 8:00 pm pitt time ( Sep 21, 8:00 am Beijing time) Stretching p-wave molecules by transverse confinements L. Zhou, X. Cui, arxiv:1707.03512
Sep 27, group meeting is skipped, due to the MURI Kickoff meeting in Santa Barbara.
Oct 4, Haiyuan Zou, Wednesday 8:00 pm pitt time ( Oct 5, 8:00 am Beijing time) Four-body ring-exchange interactions and anionic statistics within a minimal topic-code Hamiltonian Ref: H Dai, B Yang, A Reingruber, H Sun, X Xu, Y Chen, Z Yuan, J Pan DOI:10.1038/nphys4243 (2017)
Oct 11, Ahmet Keles, Wednesday 8:00 pm pitt time ( Oct 12, 8:00 am Beijing time)
Controlled parity switch of persistent currents in quantum ladders
Michele Filippone, Charles-Edouard Bardyn, and Thierry Giamarchi
arXiv:1710.02152
Oct 18, Max Arzamasovs, Wednesday 8:00 pm pitt time ( Oct 19, 8:00 am Beijing time) Topological superfluidity with repulsive alkaline-earth atoms in optical lattices L. Isaev, A. Kaufman, G. Ortiz, and A. M. Rey arXiv:1710.02768
Oct 25, Jiansong Pan, Wednesday 8:00 pm pitt time ( Oct 26, 8:00 am Beijing time) Observation of "broad" d-wave Feshbach resonances with a triplet structure Y. Cui et al., arXiv: 1709.08794(2017)
Nov 1, Xuguang Yue, Wednesday 8:00 pm pitt time ( Nov 2, 8:00 am Beijing time) Coherent many-body spin dynamics in a long-range interacting Ising chain I. Bloch Group, arXiv:1705.08372
(U.S. Time Changes)
Nov 8, Biao Huang, Wednesday 7:00 pm pitt time ( Nov 9, 8:00 am Beijing time) Mobility Edge in 1D Quasi-Periodic Optical Lattice Xiao Li, Xiaopeng Li, S. Das Sarma PRB 96, 085119 (2017) I. Bloch’s group 1709.03478
Nov 15, Haiyuan Zou, Wednesday 7:00 pm pitt time ( Nov 16, 8:00 am Beijing time) Symmetry protected topological phase transitions of dipolar molecules on zigzag chain
Nov 22, Ahmet Keles, Wednesday 7:00 pm pitt time ( Nov 23, 8:00 am Beijing time) Correlated Spin-Flip Tunneling in a Fermi Lattice Gas Wenchao Xu, William Morong, Hoi-Yin Hui, Vito W. Scarola, and Brian DeMarco arXiv:1711.02061
Nov 29, Max Arzamasovs, Wednesday 7:00 pm pitt time ( Nov 30, 8:00 am Beijing time)
Majorana edge state in a number-conserving Fermi gas with tunable p-wave interaction X. Y. Yin, Tin-Lun Ho, and Xiaoling Cui arXiv:1711.08765
Dec 6, Jiansong Pan, Wednesday 7:00 pm pitt time ( Dec 7, 8:00 am Beijing time)
Collective modes of Bose-Einstein condensate in a spherical trap
Dec 13, Xuguang Yue, Wednesday 7:00 pm pitt time ( Dec 14, 8:00 am Beijing time)
Coupling two order parameters in a quantum gas arXiv:1711.07988v1
Winter Break (Dec 17- Jan 7)
2016
Meet on every Wednesday 7pm Pittsburgh time (Thur. 8:00 am Beijing time) unless noted otherwise.
Jan 6, Shangshun Zhang, Wednesday 7:00 pm (pitt time) Quantum magnetism of spin-orbit coupled Fermi gas
Jan 13, Xiaopeng Li, Wednesday 7:00 pm (pitt time) Dynamical Phenomena with Ultracold Atom
Jan 20, Xuguang Yue, Wednesday 7:00 pm (pitt time) Optimal control of complex atomic quantum systems
Jan 27, Yuchi He, Wednesday 7:00 pm (pitt time) Effective field theory and counting rule for Goldstone bosons
Feb 3, Bo Liu, Wednesday 7:00 pm (pitt time) Long-range interacting spin model with Rydberg atoms Ref: Science 347, 1455 (2015) by I. Bloch et al.
Feb 10, Haiyuan Zou, Wednesday 7:00 pm (pitt time) Gauge-dependent condensation in a strong synthetic magnetic field Ref: C. Kennedy, W. Burton, W. Chung, and W. Ketterle, Nature Physics 11,859 (2015)
Feb 17, Biao Huang (The Ohio State University), Wednesday 7:00 pm (pitt time) PD candidate talk Topological Responses in Cold Atom: From Hall Conductivity to Hall Viscosity
Feb 24, Max Arzamasovs, Wednesday 7:00 pm (pitt time) Evidence for universal relations describing a gas with p-wave interactions
Mar 2, No group meeting,Wednesday 7:00 pm(pitt time) (see the group event)
Mar 9, Ahmet Keles, Wednesday 7:00 pm (pitt time)
Chiral d-Wave Superfluid in Periodically Driven Lattices
Ref: PRL 115, 225301 (2015)
U.S. time change
Mar 16, No group meeting, (since shangshun leave, no volunteer to speak).
Mar 23, Xuguang Yue, Wednesday 8:00 pm pitt time (8:00 am Beijing time) Measuring the dynamic structure factor of a quantum gas undergoing a structural phase transition
Mar 30, Haiyuan Zou, Wednesday 8:00 pm (pitt time) FF Superfluids without Spin Imbalance in Driven Optical Lattices Ref: Z.Zheng, C.Qu, X.Zou, and C.Zhang PRL 116, 120403 (2016)
Apr 6, Max Arzamasovs, Wednesday 8:00 pm (pitt time) Odd-frequency superconductivity in multiband system Komendova, Balatsky, Black-Schaffer, PRB 92, 094517 (2015)
Apr 13, Ahmet Keles, Wednesday 8:00 pm (pitt time) Floquet Time Crystals Dominic V. Else, Bela Bauer, Chetan Nayak arXiv:1603.08001
Apr 20, Biao Huang, Wednesday 8:00 pm (pitt time) Fractional Chern Insulator in Bands with Zero Berry Curvature S. H. Simon, F. Harper, and N. Read, PRB 92, 195104 (2015) arxiv: 1506.08197
Apr 27, Bo Liu, Wednesday 8:00 pm (pitt time) Many-body physics in bilayer dipolar fermions
Summer 2016
Meet on every 4 week Wednesday 8pm Pittsburgh time (Thur. 8:00 am Beijing time) unless noted otherwise.
May 4, Xuguang Yue, Wednesday 8:00 pm pitt time (8:00 am Beijing time) spin-momentum coupled Bose-Einstein condensateswith lattice band pseudospins
Jun 2, Haiyuan Zou, Thursday 8:00 pm (pitt time) Two Experiments on Topological Thouless Pump: Bosonic and Fermionic Refs: M.Lohse, Nat. Phys. 12, 350 (2016) and S. Nakajima, Nat. Phys. 12, 296 (2016)
Jun 29, Max Arzamasovs, Wednesday 8:00 pm (pitt time) Chiral Magnetic Effect by Synthetic Gauge Fields Ref: arXiv:1606:03589
July 6, Dr. Xiaopeng Li (Joint Quantum Inst, U of Maryland), Wednesday 10:30am-12:00noon pitt time
July 6, Prof. Xiong-Jun Liu (Peking University, Beijing, China), Wednesday 2:00pm-3:30pm pitt time
July 27, Bo Liu, Wednesday 8:00 pm (pitt time) practical talk for KITPC conference
Aug 24, Ahmet Keles, Wednesday 8:00 pm (pitt time) Fermions in 2D shaken square optical lattice
Fall 2016
Meet on every Wednesday 8pm Pittsburgh time (Thur. 8:00 am Beijing time) unless noted otherwise
Aug 31, Xuguang Yue, Wednesday 8:00 pm pitt time ( Sep 1, 8:00 am Beijing time)
Quantum Phase Transition of the Bose-Hubbard Model inside a Cavity Yu Chen, Zhenhua Yu, Hui Zhai. PRA 93, 041601(R), Arxiv 1602.02478
The order of speakers is as follows, any time rearrangement will be informed
Sep 7, Biao Huang, Wednesday 8:00 pm pitt time ( Sep 8, 8:00 am Beijing time)
Non-Abelian Chern Insulators Enforced by Nonsymmorphic Symmetry in Optical Lattices Li-jun Lang, Shao-liang Zhang, Qi Zhou, Arxiv 1607.07812
Sep 14, Haiyuan Zou, Wednesday 8:00 pm pitt time ( Sep 15, 8:00 am Beijing time)
Discrete time crystals Ref: N.Yao, A.Potter, I.Potirniche, A.Vishwanath ArXiv: 1608.02589
Sep 21, Max Arzamasovs, Wednesday 8:00 pm pitt time ( Sep 22, 8:00 am Beijing time)
Synthetic dimensions from shaking a harmonic trap H. M. Price, T. Ozawa and N. Goldman, arXiv:1605.09310
Sep 28, Ahmet Keles, Wednesday 8:00 pm pitt time ( Sep 29, 8:00 am Beijing time) Site-resolved measurement of the spin-correlation function in the Fermi-Hubbard model Parsons, M. F., Mazurenko, A., Chiu, C. S., Ji, G., Greif, D., and Greiner, M. Science, 353, 6305 (2016)
Oct 5, Xuguang Yue, Wednesday 8:00 pm pitt time ( Oct 6, 8:00 am Beijing time)
Supersolid formation in a quantum gas breaking continuous translational symmetry ETH Zürich Esslinger’s Group, arXiv:1609.09053
Oct 12, Biao Huang, Wednesday 8:00 pm pitt time ( Oct 13, 8:00 am Beijing time)
Observation of Discrete Time Crystal J. Zhang et. al. (Monroe’s group at JQI), arxiv: 1609.08684
Oct 19, Haiyuan Zou, Wednesday 8:00 pm pitt time ( Oct 20, 8:00 am Beijing time)
Type II Weyl Points in 3D optical Lattice.
Ref:K Shastri, Z Yang, and B Zhang arxiv: 1609.05470; Y Xu and L.M Duan arxiv: 1607.04924
Oct 26, Qianfan Chen (Case Western Reserve University), Wednesday 8:00 pm pitt time ( Oct 27, 8:00 am Beijing time)
Kraus-form operator solution to nonlinear master equation by virtue of the nonlinear thermo-entangled state representation.
Nov 2, Max Arzamasovs, Wednesday 8:00 pm pitt time ( Nov 3, 8:00 am Beijing time)
Periodically Driving a Many-Body Localized Quantum System
P. Bordia, H. Lüschen, U. Schneider, M. Knap, and I. Bloch, arXiv:1607.07868
U.S. time change
Nov 9, Ahmet Keles, Wednesday 7:00 pm pitt time ( Nov 10, 8:00 am Beijing time)
Homogeneous Atomic Fermi Gases Hadzibabic and Zwierlein Groups, arXiv:1610.10100 (2016)
Nov 16, Xuguang Yue, Wednesday 7:00 pm pitt time ( Nov 17, 8:00 am Beijing time)
Observation of Quantum Criticality and Luttinger Liquid in 1D Bose Gases
B. Yang, et al., arXiv:1611.00426
(Thanksgiving days Break)
Nov 30, Biao Huang, Wednesday 7:00 pm pitt time ( Dec 1, 8:00 am Beijing time)
Out-of-Time-Order Correlations: Concepts and Measurements D.A.RobertsandD.Stanford,“Two-dimensionalconformalfieldtheoryandthebuNerflyeffect”,arxiv: 1412.5123(2014), etc.
Dec 7, Haiyuan Zou, Wednesday 7:00 pm pitt time ( Dec 8, 8:00 am Beijing time)
Many-body interferometry of a Rydberg-dressed spin lattice
Ref: J. Zeiher, R. Bijnen, P. Schaub, S. Hild, J. Choi, T. Pohl, I. Block and C Gross, Nature Physics 12, 1095(2016)
Dec 14, Max Arzamasovs, Wednesday 7:00 pm pitt time ( Dec 15, 8:00 am Beijing time)
(Winter Break Dec. 18- Jan. 3)
2015
Meet on every Wednesday 7pm Pittsburgh time (Thur. 8:00 am Beijing time) unless noted otherwise.
Jan 7, No group meeting ( ARO/AFOSR Program Review @ Rice )
Jan 14, Max Arzamasovs, Wednesday 7:00 pm (pitt time)
Topology in time-dependent systems
Jan 21, Jinlong Yu, Wednesday 7:00 pm (pitt time)
Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms
Ref:
M. Aidelsburger, M. Lohse, C. Schweizer, M. Atala, J. T. Barreiro, S. Nascimbène, N. R. Cooper, I. Bloch, N. Goldman, arXiv:1407.4205
Jan 28, Jiyao Chen, Wednesday 7:00 pm (pitt time) SU(3) spin liquid and its projective construction
Feb 4, Zhenyu Zhou, Wednesday 7:00 pm (pitt time) Tensor Network States and PEPS realization
Feb 11, Ahmet Keles, Wednesday 7:00 pm (pitt time) Functional renormalization group theory for dipolar fermions
Feb 18, Jianhui Zhou, Wednesday 7:00 pm (pitt time)
Valley-Selective Optical Stark Effect in Monolayer WS2 Ref: E.J.Sie, et al, Nature Materials (2014).
Feb 25, Long Liang (ITP, Beijing), Wednesday 7:30 pm (pitt time) (postdoc candidate talk) Distinct-symmetry spin-liquid states and phase diagram of the Kitaev-Hubbard model )
Mar 4, No group meeting (March meeting @San Antonio, TX)
U.S. time change
Mar 11,Hoi-Yin Hui (University of Maryland), Wednesday 8:00 pm (pitt time) (8:00 am Beijing time) (postdoc candidate talk) Majoranas in a ferromagnetic chain on the surface of a superconductor
Mar 18, Bo Liu, Wednesday 8:00 pm (pitt time) Observation of many-body localization of interacting fermions in a quasi-random optical lattice Ref: arxiv: 1501.05661
Mar 25, Zhifang Xu, Wednesday 8:00 pm (pitt time) Superradiance in a degenerate Fermi gas
Apr 1, Haiyuan Zou, Wednesday 8:00 pm (pitt time) Tensor network states for a compass model
Apr 8, Max Arzamasovs, Wednesday 8:00 pm (pitt time) Topological invariants in Floquet Topological Insulators D’Alessio, Rigol, http://arxiv.org/pdf/1409.6319.pdf
Apr 15, Jinlong Yu, Wednesday 8:00 pm (pitt time) Synthetic Gauge Fields in Synthetic Dimensions
Apr 22, Jiyao Chen, Wednesday 8:00 pm (pitt time) Symmetry breaking and geometry of reduced density matrix
Apr 29, Ahmet Keles, Wednesday 8:00 pm (pitt time) Engineering the Weyl Hamiltonian using the superconducting super-lattice structures Summer 2015
Meet on every 4 week Wednesday 8pm Pittsburgh time (Thur. 8:00 am Beijing time) unless noted otherwise.
May 6, Bo Liu, Wednesday 8:00 pm (pitt time) Quantum magnetism with ultracold atoms
Jun 3, Haiyuan Zou, Wednesday 8:00 pm (pitt time) Phase transitions in a compass model
July 1, no group meeting
July 29, Max Arzamasovs, Wednesday 8:00 pm (pitt time)
Fall 2015
Meet on every Wednesday 8pm Pittsburgh time (Thur. 8:00 am Beijing time) unless noted otherwise
Aug 26, Jinlong Yu , Wednesday 8:00 pm (pitt time)
Generating topological optical flux lattices for ultracold atoms
by modulated Raman and radio-frequency transitions
Sep 2, no group meeting
Sep 9, Jiyao Chen, Wednesday 8:00 pm (pitt time)
Geometry of reduced density matrix for symmetry-protected topological phase
Sep 16, Ahmet Keles, Wednesday 8:00 pm (pitt time) Competing instabilities in 2D spinless Dipolar Fermi Gas
Sep 23, Bo Liu, Wednesday 8:00 pm (pitt time) Exotic magnetic structures in a spin-orbit coupled Fermi gas
Sep 30, Haiyuan Zou, Wednesday 8:00 pm (pitt time) Fractionalized Fermi liquid on the surface of a topological Kondo insulator Ref: A. Thomson, S. Sachdev, arxiv:1509.03314
Oct 7, Max Arzamasovs, Wednesday 8:00 pm (pitt time) exotic quantum phases in spin-orbit coupled spin-1 bosons
Oct 14, Jinlong Yu, Wednesday 8:00 pm (pitt time) Two Experiments on Many-Body Localization Ref: 1. I. Bloch group, Science 349, 842 (2015). 2. C. Monroe group, arXiv:1508.07026.
Oct 21, Jiyao Chen, Wednesday 8:00 pm (pitt time)
Oct 28, Ahmet Keles, Wednesday 8:00 pm (pitt time)
Nematicity and quantum paramagnetism in FeSe
Fa Wang,Steven A. Kivelson& Dung-Hai Lee
Nature Physics 3456 (2015)
U.S. time change
Meet on every Wednesday 7pm Pittsburgh time (Thur. 8:00 am Beijing time) unless noted otherwise.
Nov 4, Bo Liu, Wednesday 7:00 pm (pitt time) Orbital interaction induced Feshbach resonance
Nov 11, Haiyuan Zou, Wednesday 7:00 pm (pitt time) A Quantum Dipolar Spin Liquid N.Yao,M.Zaletel,D.Stamper-Kurn&A.Vishwanash Arxiv:1510.06403
Nov 18, Max Arzamasovs, Wednesday 7:30 pm (pitt time) Statistical transmutation in Floquet driven optical lattice
Nov 25, no group meeting(thanksgiving)
Dec 2, Jinlong Yu, Wednesday 7:00 pm (pitt time)
When an optical lattice meets a cavity
Ref:
Tilman Esslinger group @ ETH, arXiv:1511.00007
Dec 9, Ahmet Keles, Wednesday 7:00 pm (pitt time) Direct probing of the Mott crossover in the SU(N) Fermi-Hubbard model Ref: Bloch Group arXiv:1511.07287
Dec 16-Dec 31, no group meeting (winter break)
2014
Meet on every Tuesday 7pm Pittsburgh time unless noted otherwise.
Jan 7, Zhifang Xu, Tuesday 7:00 pm (pitt time) Topological flat bands from dipolar spin systems
Jan 13, Peter Zoller (University Innsbruck), Monday 4:30 pm (pitt time) New Frontiers of Quantum Simulations with Atoms and Ions Location: 102 Thaw Hall
Jan 14, Matthias Troyer(ETH Zürich), Tuesday 2:00 pm (pitt time) Quantum Annealing and the D-Wave devices Location: Benedum G31
Jan 14, Lijun Lang, Tuesday 7:00 pm (pitt time) Dimension reduction in periodically kicked models
Jan 16, Peter Zoller (University Innsbruck) Thursday 2:00 pm (pitt time) New Frontiers of Quantum Simulations with Atoms and Ions Location: 321 Allen Hall
Jan 21, Jinlong Yu, Tuesday 7:00 pm (pitt time) Topological Bosonic Magnetic Lattices
Jan 28, Bo Liu, Tuesday 7:00 pm (pitt time) Orbital Ice in p-band
Feb 4, Zhenyu Zhou, Tuesday 7:00 pm (pitt time) Topological edge modes of periodically driven quantum hall system
Feb 11, no group meeting (see us in DARPA Meeting February 11-12, 2014)
Feb 13, Xiongjun Liu( HKUST and MIT), Thursday 4:30 pm (pitt time) Manipulating Majorana Zero Modes in Chiral and Time-reversal Invariant Quantum Nanowires Location: 321 Allen Hall
Feb 18, Xiongjun Liu, Tuesday 7:00 pm (pitt time) Exploring Topological Phases with Cold Atoms
Feb 25, Lijun Lang, Tuesday 7:00 pm (pitt time) To generate px+ipy states in periodically driven lattices
Mar 4, No group meeting (APS March Meeting)
U.S.A Time Change in spring
Meet on every Tuesday 8pm Pittsburgh time (Wed. 8:00 am Beijing time) unless noted otherwise.
Mar 11, Zhifang Xu, Tuesday 8:00 pm (pitt time) Magnetic ordering in frustrated Kondo Lattice models
Mar 18, Bo Liu, Tuesday 8:00 pm (pitt time) Time crystals
Mar 25, Jinlong Yu, Tuesday 8:00 pm (pitt time) Dynamics of the topological magnetic lattices
Apr 1, Jiyao chen, Tuesday 8:00 pm (pitt time) DMRG study for dipolar bosonic SSH model
Apr 3, Dmitri Feldman (Brown University), Thursday, 4:30 pm (pitt time) Location: 321 Allen Hall
Apr 8, zhenyu zhou, Tuesday 8:00 pm (pitt time) Topological bands in shaken optical lattice
Apr 14, Leon Balents (University of California at Santa Barbara), Thursday, 4:30 pm (pitt time) Location: 102 Thaw Hall
Apr 15, Zhifang Xu, Tuesday 8:00 pm (pitt time) Bose-Fermi mixtures in optical lattices
Apr 17, Chuanwei Zhang (University of Texas at Dallas), Thursday, 4:30 pm (pitt time) Search for Majorana Fermions in Spin-Orbit Coupled Superfluids and Superconductors
Apr 22, Bo Liu, Tuesday 8:00 pm (pitt time) Feshbach molecules in spin–orbit coupling Fermi gases
Apr 29, Jinlong Yu, Tuesday 8:00 pm (pitt time) Dynamics of the topological magnetic lattices (II)
May 6, Jiyao chen, Tuesday 8:00 pm (pitt time) SPT phase
May 13, zhenyu zhou, Tuesday 8:00 pm (pitt time) Spin orbital exchange in optical lattice
May 20, Zhifang Xu, Tuesday 8:00 pm (pitt time) Spin mixing dynamics in ultracold quantum gases
May 27, Bo Liu, Tuesday 8:00 pm (pitt time) Experimental Determination of the Finite-Temperature Phase Diagram of a Spin-Orbit Coupled Bose Gas
Jun 3, Jinlong Yu, Tuesday 8:00 pm (pitt time) Haldane model and Peierls substitution in cold atom systems
Jun 10, No group meeting (KITPC symposium)
Jun 17, Zhenyu Zhou, Tuesday 8:00 pm (pitt time) Spin orbital Liquid
Jun 24, Zhifang Xu Tuesday 8:00 pm (pitt time) - canceled per speaker's request Replacement: W. Vincent Liu, "Discussion on group meetings, arXiv selection, etc."
Summer 2014
Meet on every 4 week Tuesday 8pm Pittsburgh time (Wed. 8:00 am Beijing time) unless noted otherwise.
Jul 24, Bo Liu, Thursday 8:00 pm (pitt time)
Dicke-type phase transition in a spin-orbit coupled Bose-Einstein condensate
ref: Nature Communications 5, 4023 (2014)
Aug 19, Haiyuan Zou, Tuesday 8:00 pm (pitt time)
Observation of chiral currents with ultracold atoms in bosonic ladders
Ref: Nature Physics 10, 588-593 (2014)
Fall 2014
Meet on every Tuesday 8pm Pittsburgh time (Wed. 8:00 am Beijing time) unless noted otherwise.
Aug 26, Jinlong Yu, Tuesday 8:00 pm (pitt time) Topological magnetic flux lattices
Sep 2, Jiyao Chen, Tuesday 8:00 pm (pitt time) SPT phases on spin-1 ladders
Sep 9, Zhenyu Zhou, Tuesday 8:00 pm (pitt time) spin orbital exchange of p-band fermions
Sep 16, Ahmet keles, Tuesday 8:00 pm (pitt time) Mott transition in Bosonic two leg ladder under artificial magnetic field
Sep 23, Zhifang Xu, Tuesday 8:00 pm (pitt time) Spin-exchange interactions with alkaline earth fermions
Sep 25, Vladimir M. Stojanovic (CMT group, Harvard University), Thursday (pitt time) Sharp transitions for small polarons: from theory to transmon-based realization
Sep 30, Jianhui Zhou, Tuesday 8:00 pm (pitt time) Seeing the chiral anomaly in three-dimensional Weyl semimetals
Oct 7, Bo Liu, Thursday 8:00 pm (pitt time)
Universal dynamics of a degenerate unitary Bose gas
Ref: arXiv:1308.3696
Oct 14 Haiyuan Zou, Tuesday 8:00 pm (pitt time)
What are the orbital and spin orders for spin-1/2 p-bands model on a triangular lattice?
Oct 21, Jinlong Yu, Tuesday 8:00 pm (pitt time)
Topological phase transitions in magnetic lattices
Oct 28, Jiyao Chen, Tuesday 8:00 pm (pitt time) Spectral and entanglement properties of the bosonic Haldane insulator
U.S.A Time Change in Fall
Meet on every Tuesday 7pm Pittsburgh time (Wed. 8:00 am Beijing time) unless noted otherwise.
Nov 4, Zhenyu Zhou, Tuesday 7:00 pm (pitt time) Coherent dipolar coupling between two Rydberg atoms at Förster resonance
Nov 11, Zhifang Xu, Tuesday 7:00 pm (pitt time) Rydberg addressing in ultracold atoms
Nov 18, Ahmet keles, Tuesday 7:00 pm (pitt time) Observation of Fermi surface deformation in a dipolar quantum gas Ref: Science 345 (6203), 1484
Nov 25, Jianhui Zhou, Tuesday 7:00 pm (pitt time) Spin responses and effective Hamiltonian for the two dimensional electron gas at oxide interface LaAlO3/SrTiO3
Dec 2, Bo Liu, Tuesday 7:00 pm (pitt time) Roton-maxon excitation spectrum of Bose condensates in a shaken optical lattice
Dec 9, Haiyuan Zou, Tuesday 7:00 pm (pitt time) Tensor network algorithms to Kitaev-Heisenberg model and a recent development on Tensor network formulation Ref: J. Iregui, P. Corboz, and M. Troyer PRB90,195102 and G. Evenbly and G. Vidal, arxiv:1412.0732
From Dec 14 to Jan 4, no group meeting
2013
Meet on every Tuesday 8pm Pittsburgh time unless noted otherwise.
Jan 8, Zhifang Xu, Classifying vortices in spin-orbit coupled spinor BECs
Jan 13 (Sunday 9am Pittsburgh time), Kush Saha, Department of Theoretical Physics, Indian Association for the Cultivation of Science, Kolkata, India. Interacting bosons in an optical lattice in the presence of a synthetic gauge potential
Jan 14 (Monday 9:30am Pittsburgh time), Tyler Dodds, University of Toronto Quantum spin liquids in the absence of spin rotation symmetry: An application to Herbertsmithite
Jan 15 moved to Jan 16
Jan 16 (7pm Pittsburgh time), Huazhou Wei, University of California, Riverside "Excitonic Phases from Weyl Semi-Metals"
Jan 22, Zhenyu Zhou, Washington University in St. Louis Heat equation approach to geometric changes of the torus Laughlin-state
Jan 29, Lijun Lang Edge States and Topological Phases in One-Dimensional Optical Superlattices
Feb 5, no meeting (Liu in NORDITA, Stockholm, Sweden)
Feb 12, Bo Liu Effect of the correlation energy in the normal state of a dipolar Fermi gas
Feb 19, Jin-Long Yu Quantum phase dynamics of a spin-orbit coupled Bose-Einstein condensate
Feb 26 meeting, moved to Feb 27 Wed 7pm Pittsburgh time (Liu in a Symposium in UT Dallas), Xiaopeng Li Coexistence of Ferromagnetic and superconducting orders in the LAO/STO interface
March 5, Zhifang Xu Symmetry and Topology of BECs with Spin
March 12, Xiaopeng Li, Tuesday 8:30pm (pitt time)
Practice talk for APS march Meeting
March 26, Lijun Lang, Tuesday 8:00pm (pitt time) (new shedule starting from this week) Majorana fermions and phase transitions in 1D superlattices
April 2, Bo Liu, Tuesday 8:00pm (pitt time)
BEC-BCS Crossover of spin-1/2 �sp-band Fermi gases in two dimensional optical lattice
April 9, Jin-Long Yu, Tuesday 8:00pm (pitt time) Spin-dependent hexagonal lattices and related valley physics
April 16, Xiaopeng Li, Tuesday 8:00pm (pitt time) Quantum geometries---Berry curvature and Riemannian metric
April 23, Kai Sun, Tuesday 12:00pm-1:00pm (pitt time) Adiabatic continuity between Hofstadter and Chern insulator states
April 23, Lijun Lang, Tuesday 8:00pm (pitt time) Floquet theory and Floquet topological insulators
April 30, Bo Liu, Tuesday 8:00 pm (pitt time) p+ip superfluid state of spin-1/2 �sp-band Fermi gases in two dimensional optical lattice
May 7 Jin-Long Yu, Tuesday 8:00 pm (pitt time) Quantum geometric tensor and Quantum phase transition
May 14 Zhifang Xu, Tuesday 8:00 pm (pitt time) Tuning Effective Hamiltonian: Unitary transformation
May 21 Xiaopeng Li, Tuesday 8:00 pm (pitt time) Generic Magnetic phases with weak spin-orbital couplings
June 4, Lijun Lang, Tuesday 8:00 pm (pitt time) Try to find Floquet topological insulators
June 11, Bo Liu, Tuesday 8:00 pm (rescheduled) p+ip superfluid state of spin-1/2 �sp-band Fermi gases in 2D spin-dependent optical lattice
June 12, Bo Liu, Wed 8:00 pm p+ip superfluid state of spin-1/2 �sp-band Fermi gases in 2D spin-dependent optical lattice
June 19, Jin-Long Yu, Wed 8:00 pm Entanglement properties of interacting Kitaev's chain
June 25, Zhifang Xu, Tuesday 8:00 pm
Simulating spin-orbit coupling with orbitals.
July 2, Jiyao Chen, Tuesday 8:00 pm
Topological Bosonic Mott Insulator
July 10, Xiaopeng Li, Wednesday 8:00 pm
In situ observation of strongly interacting ferromagnetic domains in a shaken optical lattice
Ref: http://arxiv.org/abs/1305.5487
July 16, Lijun Lang, Tuesday 8:00 pm Periodic driving induced phase transition in 1D superlattices
July 30, Bo Liu, Tuesday 8:00 pm Recent experimental progress in polar molecules Ref: arXiv:1305.5598
Aug 6, Jin-Long Yu, Tuesday 8:00 pm
Matrix product states for 1-d quantum chains
Aug 13, Zhi-Fang Xu, Tuesday 8:00 pm Spin-orbit-coupled dipolar quantum gases
Aug 20, Xiaopeng Li, Tuesday 8:00 pm Experimental realization of Hofstadter Hamiltonian with ultracold atoms in optical lattices Refs: arXiv: 1308.0321 (2013) by I. Bloch's group; arXiv 1308:1431(2013) by Ketterle's group
Aug 27, Lijun Lang, Tuesday 8:00 pm Moving and merging of Dirac points
Sep 3, Bo Liu, Tuesday 8:00 pm Superconducting Vortex Lattices for Ultracold Atoms Ref: arXiv:1302.3504
Sep 10, Jin-Long Yu, Tuesday 8:00 pm Searching for Topology in 2d Optical Lattices
Sep 17, Zhenyu Zhou, Tuesday 8:00 pm Floquet Topological insulators
Sep 24, Zhifang Xu Tuesday 8:00pm Dynamical symmetry breaking in a shaking optical lattice
Oct 1, Jiyao Chen, Tuesday 8:00 pm Spin‐dependent lattice with spin‐orbit coupling
Oct 8, Li-Jun Lang, Tuesday 8:00 pm Moving and merging of Dirac points in square lattices with \pi/2 flux
Oct 16, Bo Liu, Wed 8:00 pm (pitt time, rescheduled) Dirac points with a Fermi gas in a tunable honeycomb lattice Ref: Nature 483, 302-305 (2012)
Oct 22, Jin-Long Yu, Tuesday 8:00 pm (pitt time) Designing Artificial Magnetic Lattices
Oct 29, Zhenyu Zhou, Tuesday 8:00 pm (pitt time) Periodic Driving on Hofstadter Model
U.S.A Time Change in Fall Meet on every Tuesday 7pm Pittsburgh time (Wed. 8:00 am Beijing time) unless noted otherwise.
Nov 5 move toNov 7, Zhifang Xu,Thursday 7:00 pm (pitt time) (cancelled, will be rescheduled later)
Nov 12, Jiyao Chen, Tuesday 7:00 pm (pitt time)
Nov 19, Li-Jun Lang, Tuesday 7:00 pm (pitt time) Extracting the Chern number from the dynamics of a Fermi gas: Implementing a quantum Hall bar for cold atoms (Ref: A. Dauphin and N. Goldman, arXiv:1305.3872)
Nov 26,Bo Liu,Tuesday 7:00 pm (pitt time) Transport property in two-dimensional Bose gas Ref: arxiv:1306.4018
Dec 3 move to Dec 5, Jin-Long Yu,Thursday 7:00 pm (pitt time) (rescheduled) Many faces of Wannier functions
Dec 10, Zhenyu Zhou, Tuesday 7:00 pm (pitt time)
From Dec 16 to Jan 3, no group meeting.
2012
Sep 3rd, Xiaopeng Li, Orbital Physics in one dimension
Sep 10th, Zhifang Xu, Spinor BEC with spin-orbital couplings
Sep 17th, Bo Liu, Anisotropic Topological Superfluid Phase of a 3D Dipolar Fermi Gas
Sep 24th, Jin-Long Yu Quantum Dynamics of quenched lattice systems
Oct 10th, Xiaopeng Li Superconductivity with repulsion in one dimension
Oct 31st (Wed 5pm Santa Barbara time), Zhifang Xu Low energy excitations of Bose gases with spin-orbit coupling
Nov 15 (Thursay 9:30 am Beijing Time), Bo Liu, Itinerant Ferromagnetism in Spin-Orbit Coupled Fermi Gases
Nov 20 (Tuesday 9:30 am Beijing Time), Jin-Long Yu, Interaction effects in Kitaev's 1D chain
Dec 4, W. Vincent Liu, (in the super joint group meeting) low dimensional spin imbalanced Fermi gases in strong coupling limit
Dec 11, Xiaopeng Li Quench Dynamics as a probe of ``hidden" angular momentum ordering
Summer 2012
May 9th, Xiaopeng Li, Topological orbital ladders Reference: http://arxiv.org/abs/1205.0254 Abstract: We unveil a topological phase of interacting fermions on a two-leg ladder of unequal parity orbitals, derived from the experimentally realized double-well lattices by dimension reduction. $Z_2$ topological invariant originates simply from the staggered phases of $sp$-orbital quantum tunneling, requiring none of the previously known mechanisms such as spin-orbit coupling or artificial gauge field. Another unique feature is that upon crossing over to two dimensions with coupled ladders, the edge modes from each ladder form a parity-protected flat band at zero energy, opening the route to strongly correlated states controlled by interactions. Experimental signatures are found in density correlations and phase transitions to trivial band and Mott insulators.
May 16th, Johannes Schachenmayer, Measuring entanglement growth in quench dynamics of bosons in a optical lattice
Reference: arXiv:1205.1521
I'll discuss our recent preprint.
Abstract:
We discuss a scheme to measure the many-body entanglement growth during quench dynamics with bosonic atoms in optical lattices. By making use of a 1D or 2D setup in which two copies of the same state are prepared, we show how arbitrary order Renyi entropies can be extracted using tunnel-coupling between the copies and measurement of the parity of on-site occupation numbers, as has been performed in recent experiments. We illustrate these ideas for a Superfluid-Mott insulator quench in the Bose-Hubbard model, and also for hard-core bosons, and show that the scheme is robust against imperfections in the measurements.
July 6th, Xiaopeng Li, Exotic superconducting phases on the sp-orbital ladder
Reference: (1) X. Li's unpublished notes and (2) PRB 61, 2497 (2000) by U. Ledermann and K. Le Hur
July 10th, Andrew Daley, Steady-state spin squeezing in hot reactive fermions
Reference: To be posted
Spring 2012
Tuesday 12:30PM-2:30PM, 316 Allen Hall
Jan 10, Johannes Schachenmayer, Dynamical Crystal Creation With Polar Molecules or Rydberg Atoms in Optical Lattices
Reference: J. Schachenmayer, I. Lesanovsky, A. Micheli, and A. J. Daley, “Dynamical crystal creation with polar molecules or Rydberg atoms in optical lattices,” New Journal of Physics, vol. 12, no. 10, p. 103044, Oct. 2010. http://iopscience.iop.org/1367-2630/12/10/103044/
Jan 17, Saubhik Sarkar, Quantum simulation of antiferromagnetic spin chains in an optical lattice
Reference: Nature 472, 307
Jan 24, Bin Wang, Probing Atomic Majorana Fermions in Optical Lattices Reference: arXiv:1201.3253
CMT Faculty Candidate Lunch Talks 12:00PM - 1:00PM, 318 Allen
Jan 27, Friday, Wayne Witzel, Informal lunch discussion on "Simulating a Solid State Spin Qubit in a Spin Bath"
Jan 31, Tuesday, Kai Sun, Informal lunch discussion on "Topological Insulators, Topological Semimetals, and Quantum Hall effects without Landau Levels"
Feb 3, Friday, Doron Bergman, Informal lunch discussion on "The Topological Insulator in a Fermi Sea—Sink or Swim"
Feb 7, Tuesday, Suk Bum Chung, Informal lunch discussion on "Detecting Majorana Fermions in Topological Superconductors"
Feb 10, Friday, Alexey Gorshkov, Informal lunch discussion on "Many-body Physics with Atomic, Molecular, and Optical Systems and Methods"
Feb 14, Tuesday, Ying-Dan Wang, Informal lunch discussion on "Fighting against Thermal Noise in Quantum Opto- and Electro-mechanical Systems"
Feb 17, Friday, Liang Jiang, Informal lunch discussion on "Quantum Information Processing with Spins and Topological Quantum Systems"
Resume Group Meeting Tuesday 12:30PM-2:30PM, 316 Allen Hall
Feb 21, March Meeting Rehearsal Li, Xiaopeng, Time reversal symmetry breaking of p-orbital bosons in a one-dimensional optical lattice Schachenmayer, Johannes, Cold bosons in noisy optical lattices Stefanus, Search for conformal invariance in 2-D compressible turbulence Wang, Bin, Quantum Dynamics of Population-Imbalanced Fermi Mixture in One-dimensional Optical Lattices
Feb 28, No group meeting (APS March Meeting)
Mar 6, Tuesday 12:30 316 Allen (Group Meeting), Adrian Kantian (University of Geneva), Mobile impurities in 1D cold gases
Mar 7, Wednesday 12:00 318 Allen (Pizza Lunch), Ulf Bissbort (University of Frankfurt), Quasi-particle theory and dynamics of strongly interacting bosons in optical lattices
Mar 13, Xiaopeng Li, A topological insulator without artificial gauge fields Prof. W. Vincent Liu, Background gauge field approach to topological invariants in superconductivity
Mar 20, Prof. David Weiss (Penn State University), Informal discussion on "Experiments with Atoms in Optical Lattices"
Mar 27, Johannes Schachenmayer, Pink noisy lattices and the analytical Luttinger liquid methods from Reference: Nature Physics 6, 806–810 (http://www.nature.com/nphys/journal/v6/n10/abs/nphys1754.html) Reference: Keldysh Formalism Reference: Giamarchi lecture notes
Apr 3, Bin Wang, Resonantly Tunable Majorana Polariton in a Microwave Cavity Reference: arXiv:1202.2649 Reference: Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation, Phys. Rev. A 69, 062320 (2004)
Apr 10, No group meeting
Apr 17, Hannes Pichler (University of Innsbruck), Many-body dynamics of cold atoms in noisy optical lattices Abstract: Cold atomic gases in optical lattices offer the possibility to study strongly correlated condensed matter systems and provide tools in the implementation of quantum information processing. A key challenge in experiments is that they require very low temperatures. We study different heating mechanisms in these setups and in this talk I present our results on heating arising due to classical (stochastic) fluctuations of the depth of the lattice potential. Further I present a lattice setup that allows minimizing or even canceling the heating effects of such fluctuations. If I have time in the end, I will briefly talk about an other project where we try to find schemes to measure entanglement (linear entropy) in many-body systems of cold atoms in optical lattices.
Apr 24, Saubhik Sarkar, Light-cone-like spreading of correlations in a quantum many-body system Reference: http://www.nature.com/nature/journal/v481/n7382/full/nature10748.html Theory part: Propagation front of correlations in an interacting Bose gas Reference: http://arxiv.org/abs/1202.5558
2011
Thursday 2:00PM-4:00PM, 316 Allen Hall
Sep 22, Zixu Zhang, Possible FFLO phase in heavy fermion compound CeCoIn5
Sep 29, Xiaopeng Li, Ground state phases of ultracold bosons with Rashba-Dresselhaus spin-orbit coupling Reference: arXiv:1109.4954
Tuesday 12:30PM-2:30PM, 316 Allen Hall
Oct 4, Andrew Daley, Non-equilibrium many-body dynamics and heating of cold atoms in optical lattices Reference: Phys. Rev. A 82, 063605 (2010)
Oct 11, Zixu Zhang, Mottness and magnetism of fermions in a double-well optical lattice Reference: arXiv:1108.4409
Oct 18, Bin Wang, Bin will talk about some TEBD papers from Torma's group, along with his recent results on dynamics of 1D Hubbard model Reference: PRL 106, 206401; PRA 84, 041601.
Oct 25, Xiaopeng Li, Driving bosons condensed in the D-band of an optical chequerboard lattice through a topologically induced avoided band crossing
Nov 1, Johannes Schachenmayer, Atomic matter-wave revivals with definite atom number in an optical lattice Reference: Phys. Rev. A 83, 043614 (2011) link
Nov 8, Prof. Andrew Daley, Bound state energies of atoms in optical lattices and effective 3-body shifts Reference: M. J. Mark, E. Haller, K. Lauber, J. G. Danzl, A. J. Daley, and H.-C. Nägerl, Precision Measurements on a Tunable Mott Insulator of Ultracold Atoms, Phys. Rev. Lett. 107, 175301 (2011). H. P. Büchler, Phys. Rev. Lett. 104, 090402 (2010). P. R. Johnson, E. Tiesinga, J. V. Porto, and C. J. Williams, New J. Phys. 11, 093022 (2009). S. Will, T. Best, U. Schneider, L. Hackermüller, D.-S.Lühmann, and I. Bloch, Nature 465, 197 (2010). D. Blume, arXiv:1111.0941.
Nov 15, Bin Wang, Quantum Hall effect in one-dimensional dynamical system Reference: PRB 84, 115133 (2011)
Nov 22, Zixu Zhang, Unconventional multi-orbital superfluidity in optical lattices Reference: Arxiv: 1104.3456, Published online on Nature Physics at http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys2128.html PRA 84, 031607(R), PRB 83, 195106
Nov 29, Xiaopeng Li, Multi-band fragmented BEC
2010
Summer 2010 Monday 3:00--5:00pm, 316 Allen Hall
May 3, Zixu Zhang, Topological insulators II
May 10, Chungwei Lin, Nematic Phase in Quasi 1D system
May 19, Xiaopeng Li, Goldstone modes in LOFF superconductors Reference: arxiv: 1003.2194
Spring 2010 Friday 3:00--5:00pm, 316 Allen Hall
Jan 15, Zixu Zhang, Pair Correlations of a Spin-Imbalanced Fermi Gas on Two-Leg Ladders Reference: PRL 102, 076403
Jan 22, Xiaopeng Li, Finite range interaction and Supersolid Reference: PRA 73, 031602 PRA 75, 023623 Arxiv 0912.3261
Jan 29, Xiaopeng Li, Xiaopeng will continue the discussion on Finite range interaction and supersolid
Feb 5, Chungwei Lin, Thermalization for isolated quantum system Reference: PRL 98, 050405 Nature 440, 900(2006) Nature 452, 854 (2008)
Feb 12, Chungwei Lin, Chungwei will continue the discussion on Thermalization for isolated quantum system
Feb 19, Xiaopeng Li, Xiaopeng will give a brief report on the new results of his work
Feb 26, No group meeting
Mar 8, Zixu Zhang, Topological insulators
Mar 12, APS March meeting Rehearsal
Mar 19, No group meeting (APS March Meeting)
Mar 26, Chungwei Lin, Quantum Liquid Crystals in an Imbalanced Fermi Gas: Fluctuations and Fractional Vortices in Larkin-Ovchinnikov States Reference: PRL 103, 010404
Apr 5, Xiaopeng Li, Accurate numerical verification of the instanton method for macroscopic quantum tunneling: dynamics of phase slips Reference: arXiv:0908.2592v1
Apr 12, Zixu Zhang, Zixu will report his research progress
Apr 19, Chungwei Lin, Simulating the edge dislocation in LO phase using BdG equation
Apr 26, Xiaopeng Li, RF spectroscopy
2009
Wednesday 10:00am--Noon, 316 Allen Hall
May 13, No group meeting
May 20, Prof. Vincent Liu, DARPA Meeting Review
May 27, Zixu Zhang, s+p coupling I
Jun 3, Zixu Zhang, s+p coupling II
Jun 10, Chungwei Lin, The mean field study on dipolar gas: linear instability of Fermi surface
Jun 17, No group meeting
Jun 24, No group meeting
Jul 1, Xiaopeng Li, Ground state of 2d Cold Boson Molecule
Spring 2009
Wednesday 2:00--3:30pm, 316 Allen Hall
Jan 14, Zixu Zhang, Damping of Ultracold Fermi Gas
Jan 21, Erhai Zhao, Modulated superfluidity in quasi-1D
Jan 28, Xiaopeng Li, Cold Polar Molecule Dipole Dipole interaction Reference: Condensed Matter Physics with Cold Polar Molecules, G. Pupillo, A. Micheli, H.P. Buchler, and P. Zoller, arXiv:0805.1896v1
Feb 4, Xiaopeng Li, Xiaopeng will continue the discussion on polar molecules.
Feb 11, Chungwei Lin, Diagrammatic Quantum Monte Carlo of the 1D Hubbard Model
Feb 18, Prof. Vincent Liu, A simple model for understanding narrow and wide Feshbach resonances
Feb 25, No Group Meeting, (Erhai travels for a job interview)
Mar 4, Erhai Zhao, Outlook of APS March Meeting Zixu Zhang, Collective mode damping in a 1D Fermi Gas
Mar 11, Erhai Zhao, Interaction quench in the Hubbard model Reference: Moeckel and Kehrein, PRL 100, 175702 (2008)
Mar 18, No Group Meeting, (APS March Meeting)
Mar 25, Prof. Han Pu, Rice University, Dipolar Quantum Gases
Apr 1, Xiaopeng Li, Three-body interactions with cold Polar Molecules Reference: Three-body interactions with cold polar molecules H.P. Buchler, A.Micheli, P.Zoller Lectures on Bosonization C.L. Kane
Apr 8, Qi Zhou, Ohio State University, New Probing Schemes in Optical Lattices
Apr 15, Xiaopeng Li, Xiaopeng will continue the discussion on Three-body interactions with cold Polar Molecules Chungwei Lin, Chungwei will contribute to the discussion with Xiaopeng
Apr 22, No Group Meeting, (Final week)
Apr 29, Chungwei Lin, Metanematic, smectic, and crystalline phases of dipolar fermions in an optical lattice Reference: PRA 79, 031601
May 6, Chungwei Lin, A mean field study on the 2D diploar gas
