Nonequilibrium quantum dynamics of partial symmetry breaking for ultracold bosons in an optical lattice ring trap
A vortex in a Bose-Einstein condensate on a ring undergoes quantum dynamics in response to a quantum quench in terms of partial symmetry breaking from a uniform lattice to a biperiodic one. Neither the current, a macroscopic measure, nor fidelity, a microscopic measure, exhibit critical behavior. In...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
23 April 2019
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| In: |
New journal of physics
Year: 2019, Volume: 21, Issue: 4, Pages: 1-13 |
| ISSN: | 1367-2630 |
| DOI: | 10.1088/1367-2630/ab0cb0 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1088/1367-2630/ab0cb0 Verlag, Volltext: https://doi.org/10.1088%2F1367-2630%2Fab0cb0 
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| Author Notes: | Xinxin Zhao, Marie A. McLain, J. Vijande, A. Ferrando, Lincoln D. Carr and M.Á García-March |
| Summary: | A vortex in a Bose-Einstein condensate on a ring undergoes quantum dynamics in response to a quantum quench in terms of partial symmetry breaking from a uniform lattice to a biperiodic one. Neither the current, a macroscopic measure, nor fidelity, a microscopic measure, exhibit critical behavior. Instead, the symmetry memory succeeds in identifying the critical symmetry breaking at which the system begins to forget its initial symmetry state. We further identify a symmetry energy difference in the low lying excited states which trends with the symmetry memory. |
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| Item Description: | Gesehen am 18.07.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1367-2630 |
| DOI: | 10.1088/1367-2630/ab0cb0 |