Decoherence by a spin thermal bath: Role of the spin-spin interactions and initial state of the bath
Quantum Physics
2008-10-22 v1
Abstract
We study the decoherence of two coupled spins that interact with a spin-bath environment. It is shown that the connectivity and the coupling strength between the spins in the environment are of crucial importance for the decoherence of the central system. For the anisotropic spin-bath, changing the connectivity or coupling strenghts changes the decoherence of the central system from Gaussian to exponential decay law. The initial state of the environment is shown to affect the decoherence process in a qualitatively significant manner.
Cite
@article{arxiv.0802.3828,
title = {Decoherence by a spin thermal bath: Role of the spin-spin interactions and initial state of the bath},
author = {Shengjun Yuan and Mikhail I. Katsnelson and Hans De Raedt},
journal= {arXiv preprint arXiv:0802.3828},
year = {2008}
}
Comments
submitted to PRB