Thermodynamic cost of creating correlations
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Cita com:
hdl:2117/76508
Tipus de documentArticle
Data publicació2015-06-10
EditorIOP
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
We investigate the fundamental limitations imposed by thermodynamics for creating correlations.
Considering a collection of initially uncorrelated thermal quantum systems, we ask how much
classical and quantum correlations can be obtained via a cyclic Hamiltonian process. We derive
bounds on both the mutual information and entanglement of formation, as a function of the
temperature of the systems and the available energy. While for a finite number of systems there is a
maximal temperature allowing for the creation of entanglement, we show that genuine multipartite
entanglement—the strongest form of entanglement in multipartite systems—can be created at any
finite temperature when sufficiently many systems are considered. This approach may find
applications, e.g. in quantum information processing, for physical platforms in which thermodynamic
considerations cannot be ignored.
ISSN1367-2630
Versió de l'editorhttp://iopscience.iop.org/1367-2630/17/6/065008/
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1367-2630_17_6_065008.pdf | 1,027Mb | Visualitza/Obre |