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, ds durga hand soap can be spontaneously broken by its Bogoliubov quasiparticles under quantum fluctuations.The associated PT-breaking transiti