Group Meetings Schedule 2021

From Liu Group Arxiv Selection and Meeting Schedule
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Jan 20 (skipped due to Visa emergence), Haiping Hu, Wednesday 7:00 pm pitt time (Jan 21, 8:00 am Beijing time)

Jan 27, Zehan Li (rehearsal for defense), Wednesday 7:00 pm pitt time (Jan 28, 8:00 am Beijing time)

Feb 3, Haiping Hu, Exceptional Topological Insulator, Wednesday 7:00 pm pitt time (Feb 03, 8:00 am Beijing time)

Feb 17, Sayan Choudhury Prethermal Discrete Time Crystals Wednesday 7:00 pm pitt time (Feb 18, 8:00 am Beijing time)

March 10, Yang Ge (Postdoc Candidate) Wednesday 7:00 pm pitt time (March 11, 8:00 am Beijing time)

Title: Universal Landau-Zener regimes in dynamical topological phase transitions

Abstract: Topological quantum matters display fascinating response properties and robust edge states that put them at the center of continuous research. Generation, control and manipulation of topological matter proves to be a colorful theoretical playground and has become attainable in ultracold atom and condensed matter platforms in recent years. In this talk, I will discuss the dynamical preparation of the topological state of Floquet Chern insulators. I will show how a no-go theorem forbids transition between difference Chern insulator phases under unitary dynamics. In finite size systems, however, a topological phase transition can occur dynamically. Of the three regimes that the dynamics across these phase transitions falls into, we found that a universal Landau-Zener regime governs the behavior of dynamical topological phase transitions.

Daylight Saving Time Begins

March 17, Han Fu (Postdoc Candidate) 8:00 pm Pitt Time (March 18, 8:00 am Beijing time)

Title: Nonequilibrium dynamics in driven ultracold Bose systems and electron transport in disordered semiconductor systems

March 24, Zi-Yong Ge (Postdoc Candidate) 8:00 pm pitt time (March 25, 8:00 am Beijing time)

March 31, Grigory Bednik (Postdoc Candidate) 8:00 pm pitt time (April 1, 8:00 am Beijing time)

April 7, Bhaskar Mukherjee Wednesday 8:00 pm pitt time (April 8, 8:00 am Beijing time)

April 21, Zijian Wang Wednesday 8:00 pm Pitt time (April 22, 8:00 am Beijing time)

May 5, Haiping Hu Wednesday 8:00 pm Pitt time (May 6, 8:00 am Beijing time)