
Proceedings Paper
Quantum energy teleportation enabled by thermal discordFormat | Member Price | Non-Member Price |
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Paper Abstract
Energy teleportation with no energy carrier between two physically separated sites was demonstrated
in principle by M. Hotta in 2008. His demonstration used a three-step protocol applied to a Heisenberg
spin particle pair initially in its fully entangled ground state. We apply the Hotta protocol to the
same Heisenberg pair but now suppose the pair is, more generally, in a thermal state, introducing
temperature as an explicit parameter. These thermal states show a degree of quantum correlation
(thermal discord) at all temperatures. We find that at any temperature energy teleportation is
possible with the Hotta protocol, even at temperatures beyond the threshold where the particles’
entanglement vanishes. This shows that entanglement is not fundamentally necessary for energy
teleportation; quantum discord generally can suffice. It is also a new instance in which quantum
dissonance (discord without entanglement) is seen to act as a quantum resource.
Paper Details
Date Published: 28 May 2013
PDF: 11 pages
Proc. SPIE 8749, Quantum Information and Computation XI, 874902 (28 May 2013); doi: 10.1117/12.2012356
Published in SPIE Proceedings Vol. 8749:
Quantum Information and Computation XI
Eric Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)
PDF: 11 pages
Proc. SPIE 8749, Quantum Information and Computation XI, 874902 (28 May 2013); doi: 10.1117/12.2012356
Show Author Affiliations
Michael R. Frey, Bucknell Univ. (United States)
Masahiro Hotta, Tohoku Univ. (Japan)
Published in SPIE Proceedings Vol. 8749:
Quantum Information and Computation XI
Eric Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)
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