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Thermodynamical approach to quantifying quantum correlations

Oppenheim, J; Horodecki, M; Horodecki, P; Horodecki, R; (2002) Thermodynamical approach to quantifying quantum correlations. Physical review letters , 89 (18) , Article 180402. 10.1103/PhysRevLett.89.180402. Green open access

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Abstract

We consider the amount of work which can be extracted from a heat bath using a bipartite state ρ shared by two parties. In general it is less then the amount of work extractable when one party is in possession of the entire state. We derive bounds for this “work deficit” and calculate it explicitly for a number of different cases. In particuar, for pure states the work deficit is exactly equal to the distillable entanglement of the state. A form of complementarity exists between physical work which can be extracted and distillable entanglement. The work deficit is a good measure of the quantum correlations in a state and provides a new paradigm for understanding quantum nonlocality.

Type: Article
Title: Thermodynamical approach to quantifying quantum correlations
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.89.180402
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.89.180402
Language: English
Additional information: © 2002 The American Physical Society
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1362187
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