Intrinsic decoherence and purity in a Bose quantum fluid in a triple well potential
Abstract
We consider a quantum Bose fluid confined in a triple well potential in 1D within the exact N-body Bose-Hubbard model to investigate the phenomena of intrinsic decoherence and loss of purity. Our study is done by following the time evolution of one-body properties in an N-particle closed environment. We do an exhaustive exploration of initial conditions to characterize these phenomena. Here we illustrate our main findings with a set of relevant Fock and SU(3) coherent states. Our study shows that signatures of stationarity and maximal mixing are a direct consequence of the inter-particle interactions in the closed system and become evident as the number of particles is increased. This fact is confirmed by quantifying the deviations from stationarity by means of a matrix norm.
Keywords
Cite
@article{arxiv.1306.2650,
title = {Intrinsic decoherence and purity in a Bose quantum fluid in a triple well potential},
author = {Arturo Camacho and Rosario Paredes},
journal= {arXiv preprint arXiv:1306.2650},
year = {2014}
}
Comments
17 pages, 7 figures