Isotropic Phase-Number Squeezing and Macroscopic Quantum Coherence

Details Isotropic Phase-Number Squeezing and Macroscopic Quantum Coherence Isotropic Phase-Number Squeezing and Macroscopic Quantum Coherence

1994-07-30

arxiv.org/abs/cond-mat/9407122v1

Physics

Condensed Matter

4 pages, RevTeX 3.0 with twocolumn option (5 postscript figures included in a uuencoded tar-compressed separate file), Rome I

Scientific paper

10.1007/BF02726159

A new master equation performing isotropic phase-number squeezing is suggested. The phase properties of coherent superpositions are analyzed when the state evolves in presence of a bath with fluctuations squeezed in this isotropic way. We find that such a reservoir greatly improves persistence of coherence with respect to either a customary thermal bath, or to an anisotropically squeezed phase-sensitive bath.

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