Quantum energy teleportation with a linear harmonic chain

Yasusada Nambu, Masahiro Hotta

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A protocol of quantum energy teleportation is proposed for a one-dimensional harmonic chain. A coherent-state positive operator-valued measure (POVM) measurement is performed on coupled oscillators of the chain in the ground state accompanied by energy infusion to the system. This measurement consumes a part of the 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.

Original languageEnglish
Article number042329
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number4
Publication statusPublished - 2010 Oct 22

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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