Frozen discord in stochastic dephasing environment
Quantum Physics
2020-11-10 v1
Abstract
Preserving quantum coherence is fundamental challenge in the field of quantum computation. Here, I investigate the frozen discord phenomenon and non-Markovianity for qubits experiencing local dephasing in a classical environment. The quantum discord of a certain initial bipartite state, independently interacting with stochastic Gaussian fields, can be frozen for a finite time. The preservation of discord is shown to be intimately related to the backflow of information from the environment. The relevant result for quantum dephasing environment is compared.
Cite
@article{arxiv.2011.04180,
title = {Frozen discord in stochastic dephasing environment},
author = {Bin Yi},
journal= {arXiv preprint arXiv:2011.04180},
year = {2020}
}