Friday, January 4, 2013

1301.0485 (Masahiro Hotta)

Ground-State Entanglement Bound for Quantum Energy Teleportation of
General Spin-Chain Models
   [PDF]

Masahiro Hotta
In protocols of quantum energy teleportation (QET), ground-state entanglement of many-body systems plays a crucial role. For a general class of spin-chain systems, we show analytically that the entanglement entropy is lower bounded by a positive quadratic function of the teleported energy between the regions of a QET protocol. This supports a general conjecture that ground-state entanglement is an evident physical resource for energy transportation in the context of QET
View original: http://arxiv.org/abs/1301.0485

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