Quantum fluctuations on top of a PT-symmetric Bose-Einstein condensate
We investigate the effects of quantum fluctuations in a parity-time (PT) symmetric two-species Bose-Einstein condensate (BEC). It is found that the PT symmetry, though preserved by the macroscopic condensate, can be spontaneously broken by its Bogoliubov quasiparticles under quantum fluctuations. Th...
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| Format: | Article |
| Language: | English |
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American Physical Society
2022-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.013047 |