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Isotropic Phase-Number Squeezing and Macroscopic Quantum Coherence

G. M. D'Ariano·M. Fortunato·P. Tombesi
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Abstract

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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G. M. D'Ariano, M. Fortunato, P. Tombesi. 1994-07-30. Isotropic Phase-Number Squeezing and Macroscopic Quantum Coherence. https://doi.org/10.1007/bf02726159

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