Isotropic Phase-Number Squeezing and Macroscopic Quantum Coherence
凝聚态物理
2009-10-22 v1 高能物理 - 理论
摘要
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.
引用
@article{arxiv.cond-mat/9407122,
title = {Isotropic Phase-Number Squeezing and Macroscopic Quantum Coherence},
author = {G. M. D'Ariano and M. Fortunato and P. Tombesi},
journal= {arXiv preprint arXiv:cond-mat/9407122},
year = {2009}
}
备注
4 pages, RevTeX 3.0 with twocolumn option (5 postscript figures included in a uuencoded tar-compressed separate file), Rome I preprint N. 1043-94