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Entanglement Theory Quantum Correlations
Do all states undergo sudden death of entanglement at finite temperature?
arXiv
Authors: Asma Al-Qasimi, Daniel F. V. James
Year
2007
Paper ID
49647
Status
Preprint
Abstract Read
~2 min
Abstract Words
85
Citations
N/A
Abstract
In this paper we consider the decay of quantum entanglement, quantified by the concurrence, of a pair of two-level systems each of which is interacting with a reservoir at finite temperature T. For a broad class of initially entangled states, we demonstrate that the system always becomes disentangled in a finite time i.e."entanglement sudden death" (ESD) occurs. This class includes all states which previously had been found to have long-lived entanglement in zero temperature reservoirs. Our general result is illustrated by an example.
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- In this paper we consider the decay of quantum entanglement, quantified by the concurrence, of a pair of two-level systems each of which is interacting with a reservoir at...
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