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arXiv:0708.0356

Quantum phase diffusion of a Bose system: beyond the Hartree-Fock-Bogoliubov approximation

FERDINANDO DE PASQUALE, Gian Luca Giorgi

Published Aug 2, 2007• 0 citations
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Abstract

A diffusion process is usually assumed for the phase of the order parameter of a Bose system of finite size. The theoretical basis is limited to the so called Bogoliubov approximation. We show that a suitable generalization of the Hartree-Fock-Bogoliubov approach recovers phase diffusion.
DOI
10.48550/arxiv.0708.0356

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