Spin gases as microscopic models for non-Markovian decoherence
Quantum Physics
2007-05-23 v1
Abstract
We analyze a microscopic decoherence model in which the total system is described as a spin gas. A spin gas consists of N classically moving particles with additional, interacting quantum degrees of freedom (e.g. spins). For various multipartite entangled probe states, we analyze the decoherence induced by interactions between the probe- and environmental spins in such spin gases. We can treat mesoscopic environments (10^5 particles). We present results for a lattice gas, which could be realized by neutral atoms hopping in an optical lattice, and show the effects of non-Markovian and correlated noise, as well as finite size effects.
Keywords
Cite
@article{arxiv.quant-ph/0506208,
title = {Spin gases as microscopic models for non-Markovian decoherence},
author = {L. Hartmann and J. Calsamiglia and W. Dür and H. J. Briegel},
journal= {arXiv preprint arXiv:quant-ph/0506208},
year = {2007}
}
Comments
4 pages, 4 figures