Difference between revisions of "Arxiv Selection Jun 2019"
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Jun 1-Jun 7 Sayan Choudhury, Jun 8-Jun 14 Zehan Li, Jun 15- Jun 21 Jiansong Pan, Jun 22- Jun 28 Ahmet Keles | Jun 1-Jun 7 Sayan Choudhury, Jun 8-Jun 14 Zehan Li, Jun 15- Jun 21 Jiansong Pan, Jun 22- Jun 28 Ahmet Keles | ||
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| + | Jun 9 | ||
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| + | arXiv:1906.03185 [pdf, other] | ||
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| + | Homogeneous Floquet time crystal protected by gauge invariance | ||
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| + | Angelo Russomanno, Simone Notarnicola, Federica Maria Surace, Rosario Fazio, Marcello Dalmonte, Markus Heyl | ||
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| + | Comments: 6 pages and 4 figures + 3 pages and 3 figures of Supplementary Information | ||
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| + | Subjects: Quantum Gases (cond-mat.quant-gas); Quantum Physics (quant-ph) | ||
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| + | We show that homogeneous lattice gauge theories can realize nonequilibrium quantum phases | ||
| + | with long-range spatiotemporal order protected by gauge invariance instead of disorder. We study | ||
| + | a kicked Z2-Higgs gauge theory and find that it breaks the discrete temporal symmetry by a period | ||
| + | doubling. In a limit solvable by Jordan-Wigner analysis we extensively study the time-crystal | ||
| + | properties for large systems and further find that the spatiotemporal order is robust under the | ||
| + | addition of a solvability-breaking perturbation preserving the Z2 gauge symmetry. The protecting | ||
| + | mechanism for the nonequilibrium order relies on the Hilbert space structure of lattice gauge theories, | ||
| + | so that our results can be directly extended to other models with discrete gauge symmetries. | ||
Revision as of 23:36, 9 June 2019
Jun 1-Jun 7 Sayan Choudhury, Jun 8-Jun 14 Zehan Li, Jun 15- Jun 21 Jiansong Pan, Jun 22- Jun 28 Ahmet Keles
Jun 9
arXiv:1906.03185 [pdf, other]
Homogeneous Floquet time crystal protected by gauge invariance
Angelo Russomanno, Simone Notarnicola, Federica Maria Surace, Rosario Fazio, Marcello Dalmonte, Markus Heyl
Comments: 6 pages and 4 figures + 3 pages and 3 figures of Supplementary Information
Subjects: Quantum Gases (cond-mat.quant-gas); Quantum Physics (quant-ph)
We show that homogeneous lattice gauge theories can realize nonequilibrium quantum phases with long-range spatiotemporal order protected by gauge invariance instead of disorder. We study a kicked Z2-Higgs gauge theory and find that it breaks the discrete temporal symmetry by a period doubling. In a limit solvable by Jordan-Wigner analysis we extensively study the time-crystal properties for large systems and further find that the spatiotemporal order is robust under the addition of a solvability-breaking perturbation preserving the Z2 gauge symmetry. The protecting mechanism for the nonequilibrium order relies on the Hilbert space structure of lattice gauge theories, so that our results can be directly extended to other models with discrete gauge symmetries.
