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arXiv:1101.3954

Quantum Energy Teleportation: An Introductory Review

Masahiro Hotta

Published Jan 20, 2011• 12 citations
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Abstract

The development of techniques for manipulation of quantum information has opened the door to a variety of protocols for accomplishing unprecedented tasks. In particular, a new protocol of quantum teleportation was proposed in 2008 to achieve effective energy transportation simply via local operations and classical communication without breaking any known physical laws. This is achieved by extracting zero-point energy of entangled many-body systems by local operations dependent on information obtained by a distant measurement. The concept is reviewed from an introductory viewpoint herein.

DOI
10.48550/arxiv.1101.3954

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The development of techniques for manipulation of quantum information has opened the door to a variety of protocols for accomplishing unprecedented tasks. In particular, a new protocol of quantum teleportation was proposed in 2008 to achieve effective energy transportation simply via local operations and classical communication without breaking any known physical laws. This is achieved by extracting zero-point energy of entangled many-body systems by local operations dependent on information obtained by a distant measurement. The concept is reviewed from an introductory viewpoint herein.
We propose a protocol for quantum energy teleportation which transports energy in spin chains to distant sites only by local operations and classical communication. By utilizing ground-state entanglement and notion of negative energy density region, energy is teleported without breaking any physical laws including causality and local energy conservation. Because not excited physical entity but classical information is transported in the protocol, the dissipation Quantum entanglement opens the door to several interesting quantum phenomena, including quantum teleportation (QT) [1], by which an unknown quantum state can be teleported to a distant place by local operations and classical communication (LOCC). However, QT cannot transport excitation
Quantum energy teleportation (QET) is a quantum feedback protocol in which local measurements, classical communication, and preexisting entanglement enable the extraction of energy at a distant site, without transporting physical energy carriers. Originally conceived as a theoretical manifestation of Maxwell’s demon, QET has developed into a versatile tool for probing quantum correlations, diagnosing phase transitions, and powering emergent quantum thermodynamic technologies. This brief review provides a pedagogical introduction to the theoretical foundations and recent developments of QET, including quantum operations, entropic and fidelity-based bounds, and resource analyses involving quantum discord. Additionally, recent experimental realizations on superconducting quantum computers are revisited.
Quantum energy teleportation (QET) is, from the operational viewpoint of distant protocol users, energy transportation via local operations and classical communication. QET has various links to fundamental research fields including black-hole physics, the quantum theory of Maxwell's demon, and quantum entanglement in condensed-matter physics. However, the energy that has been extracted using a previous QET protocol is limited by the distance between two protocol users; the upper bound of the energy being inversely proportional to the distance. In this paper, we prove that introducing squeezed vacuum states with local vacuum regions between the two protocol users overcomes this limitation, allowing energy teleportation over practical distances.
FINDING: Quantum teleportation transfers state (information), not matter or energy; recent work extends protocol to energy teleportation on superconducting hardware. MATH: Core protocol uses Bell-state measurement, two classical bits, and a shared entangled pair — unitary operation U∈{I,X,Z,XZ}U \in \{I, X, Z, XZ\}U∈{I,X,Z,XZ} applied conditionally. Fidelity F=∣⟨ψin∣ψout⟩∣2F = |\langle \psi_{\text{in}} | \psi_{\text{out}} \rangle|^2F=∣⟨ψin​∣ψout​⟩∣2 approaches 1 in ideal case; distance record 1,400 km via satellite (Micius) — no new fundamental constant, but scaling law for entanglement distribution: Psuccess∝e−αLP_{\text{success}} \propto e^{-\alpha L}Psuccess​∝e−αL (attenuation), overcome by free-space channel. Energy teleportation (arXiv:2301.02666) uses local operations and classical communication (LOCC) with negative energy density extracted from vacuum — quantified by conditional mutual information I(A:C∣B)I(A:C|B)I(A:C∣B) and energy bound ⟨E⟩≥−1βI(A:C∣B)\langle E \rangle \geq - \frac{1}{\beta} I(A:C|B)⟨E⟩≥−β1​I(A:C∣B) (thermodynamic cost). CONNECTION: No direct golden-ratio or base- Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
We propose a protocol for quantum energy teleportation which transports energy in spin chains to distant sites only by local operations and classical communication. By utilizing ground-state entanglement and notion of negative energy density region, energy is teleported without breaking any physical laws including causality and local energy conservation. Because not excited physical entity but classical information is transported in the protocol, the dissipation rate of energy in transport is expected to be strongly suppressed.