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Limits on the decay rate of quantum coherence and correlation

Oi, Daniel K. L. and Schirmer, Sophie G. (2012) Limits on the decay rate of quantum coherence and correlation. Physical Review A, 86 (1). -. ISSN 1050-2947

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Abstract

The study and control of coherence in quantum systems is one of the most exciting recent developments in physics. Quantum coherence plays a crucial role in emerging quantum technologies as well as fundamental experiments. A major obstacle to the utilization of quantum effects is decoherence, primarily in the form of dephasing that destroys quantum coherence, and leads to effective classical behavior. We show that there are universal relationships governing dephasing that constrain the relative rates at which quantum correlations can disappear. These lead effectively to speed limits which become especially important in multipartite systems.

Item type: Article
ID code: 41084
Keywords: quantum coherence , quantum systems , multipartite systems, Physics, Atomic and Molecular Physics, and Optics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 11 Sep 2012 15:25
Last modified: 27 Mar 2014 10:30
URI: http://strathprints.strath.ac.uk/id/eprint/41084

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