Aspects of Quantum Energy Teleportation

• URL: http://arxiv.org/abs/2411.08927v1
• Date: Tue, 12 Nov 2024 14:40:41 GMT
• Title: Aspects of Quantum Energy Teleportation
• Authors: Taisanul Haque,
• Abstract summary: We explore quantum energy teleportation (QET) protocols, focusing on their behavior at finite temperatures and in excited states. We analyze the role of entanglement as a resource for QET, particularly in thermal states, and compare the performance of QET across various initial states. We then introduce a method to extract ground-state energy through a protocol that employs only quantum measurements, local operations, and classical communication (LOCC)
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• Abstract: In this work, we explore quantum energy teleportation (QET) protocols, focusing on their behavior at finite temperatures and in excited states. We analyze the role of entanglement as a resource for QET, particularly in thermal states, and compare the performance of QET across various initial states. We then introduce a method to extract ground-state energy through a protocol that employs only quantum measurements, local operations, and classical communication (LOCC), without requiring the ground state to be entangled. To illustrate this, we propose a minimal model comprising two interacting qubits. These findings indicate that, in addition to the established QET framework where entanglement serves as a resource, it is possible to extract energy from an unentangled ground state. This broadens the scope of QET's applicability across diverse quantum systems.

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