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Generic dissipation of entanglement

Solomon, Allan (2008). Generic dissipation of entanglement. European Physical Journal - Special Topics, 160(1) pp. 391–397.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1140/epjst/e2008-00742-7
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Abstract

We find states for a multi-level system which are stable under a very general model of dissipation, one which is governed simply by generic rate parameters; in general such stable states are not entangled. We exhibit such a state explicitly for a two-qubit system. We then specialize to a more physical model of dissipation, one which is governed by pure dephasing. In such a case it is possible, by choice of the dephasing rates, to have a stable, and limiting, entangled state under the evolution governed by the free hamiltonian and pure decoherence. We exhibit such a choice explicitly which has a stable and limiting two-qubit state of maximum entanglement (Bell state).

Item Type: Journal Article
ISSN: 1951-6355
Academic Unit/Department: Science > Physical Sciences
Item ID: 12364
Depositing User: Astrid Peterkin
Date Deposited: 19 Nov 2008 14:47
Last Modified: 02 Dec 2010 20:15
URI: http://oro.open.ac.uk/id/eprint/12364
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