Berry phase in open quantum systems: a quantum Langevin equation approach
Quantum Physics
2007-05-23 v2 Mesoscale and Nanoscale Physics
Abstract
The evolution of a two level system with a slowly varying Hamiltonian, modeled as s spin 1/2 in a slowly varying magnetic field, and interacting with a quantum environment, modeled as a bath of harmonic oscillators is analyzed using a quantum Langevin approach. This allows to easily obtain the dissipation time and the correction to the Berry phase in the case of an adiabatic cyclic evolution.
Cite
@article{arxiv.quant-ph/0410183,
title = {Berry phase in open quantum systems: a quantum Langevin equation approach},
author = {Gabriele De Chiara and Artur Lozinski and G. Massimo Palma},
journal= {arXiv preprint arXiv:quant-ph/0410183},
year = {2007}
}
Comments
6 pages, no figures. Published version