Quantum Energy Teleportation with a Linear Harmonic Chain
Quantum Physics
2015-05-19 v2 General Relativity and Quantum Cosmology
Abstract
A protocol of quantum energy teleportation is proposed for a one-dimensional harmonic chain. A coherent-state POVM measurement is performed to coupled oscillators of the chain in the ground state accompanied by energy infusion to the system. This measurement consumes a part of ground state entanglement. Depending on the measurement result, a displacement operation is performed on a distant oscillator accompanied by energy extraction from the zero-point fluctuation of the oscillator. We find that the amount of consumed entanglement is bounded from below by a positive value that is proportional to the amount of teleported energy.
Cite
@article{arxiv.1007.2234,
title = {Quantum Energy Teleportation with a Linear Harmonic Chain},
author = {Yasusada Nambu and Masahiro Hotta},
journal= {arXiv preprint arXiv:1007.2234},
year = {2015}
}
Comments
23 pages, 10 figures, analysis for non-critical case is added, accepted for publication in PRA