Dissipation, dephasing and quantum Darwinism in qubit systems with random unitary interactions
Quantum Physics
2016-09-21 v1
Abstract
We investigate the influence of dissipation and decoherence on quantum Darwinism by generalizing Zurek's original qubit model of decoherence and the establishment of pointer states (Zurek, Nature Physics 5, 181 - 188 (2009)). Our model allows for repeated multiple qubit-qubit couplings between system and environment which are described by randomly applied two-qubit quantum operations inducing entanglement, dissipation and dephasing. The resulting stationary qubit states of system and environment are investigated. They exhibit the intricate influence of entanglement generation, dissipation and dephasing on this characteristic quantum phenomenon.
Cite
@article{arxiv.1606.09366,
title = {Dissipation, dephasing and quantum Darwinism in qubit systems with random unitary interactions},
author = {Nenad Balaneskovic and Marc Mendler},
journal= {arXiv preprint arXiv:1606.09366},
year = {2016}
}
Comments
14 pages, 6 figures