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Quantum Resource Theories Coherence

Witnessing quantum coherence in the presence of noise

arXiv
Authors: Alex Monras, Agata Chȩcińska, Artur Ekert

Year

2013

Paper ID

2387

Status

Preprint

Abstract Read

~2 min

Abstract Words

89

Citations

N/A

Abstract

We address the problem of assessing the coherent character of physical evolution. We take the quantum Zeno effect (QZE) as a characteristic trait of quantum dynamics, and derive relations among transfer rates as a function of the strength of a measurement. These relations support the intuition that only quantum dynamics is susceptible to QZE. With the derived bounds on the magnitude of coherent dynamics, we propose an experimentally accessible coherence witness. Our results have potential application in assessing coherence of quantum transport in biological and other complex many-body systems.

Why This Paper Matters

  • This paper contributes to the Quantum Resource Theories & Coherence research area in the Quantum Articles archive.
  • It adds a 2013 reference point for readers tracking recent quantum research.
  • We address the problem of assessing the coherent character of physical evolution.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1312.5724 [2] arXiv https://arxiv.org/abs/1312.5724 [3] Publisher https://arxiv.org/abs/1312.5724

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