Quantum discord induced by white noises

Details Quantum discord induced by white noises Quantum discord induced by white noises

2011-11-23

arxiv.org/abs/1111.5380v1

J. Opt. Soc. Am. B Vol. 27 Issue 9, pp.1799-1803 (2010)

Physics

Quantum Physics

6 figures

Scientific paper

We discuss the creation of quantum discord between two two-level atoms trapped in an optical cavity in a noisy environment. It is shown that nonzero steady-state quantum discord between atoms can be obtained when the white-noise field is separately imposed on atoms or cavity mode, while the steady-state quantum discord reaches zero if both cavity mode and atoms are driven simultaneously by white-noise fields. In particular, we demonstrate that white-noise field in different cases can play a variously constructive role in the generation of quantum discord.

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