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Open Quantum Systems Decoherence

Frozen discord in stochastic dephasing environment

arXiv

Authors: Bin Yi

Year

2020

Paper ID

19463

Status

Preprint

Abstract Read

~2 min

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N/A

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.

Why This Paper Matters

This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
It adds a 2020 reference point for readers tracking recent quantum research.
Preserving quantum coherence is fundamental challenge in the field of quantum computation.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2011.04180 [2] arXiv https://arxiv.org/abs/2011.04180 [3] Publisher https://arxiv.org/abs/2011.04180

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