Second-Order Coherence as an Indicator of Quantum Entanglement of Hawking Radiation in Moving-Mirror Models

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Hauptverfasser: Tomonaga, Masanori, Nambu, Yasusada
Format: Preprint
Veröffentlicht: 2024
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author Tomonaga, Masanori
Nambu, Yasusada
author_facet Tomonaga, Masanori
Nambu, Yasusada
contents The second-order coherence of light is a widely recognized physical quantity used to assess the quantum characteristics of light, and its properties have been extensively investigated in the field of quantum optics. Recently, it has been proposed that second-order coherence can be utilized as an indicator of quantum entanglement. In this study, we evaluated the second-order coherence in the context of the moving-mirror model, which serves as an analog model for Hawking radiation from a black hole. We discuss the relation between entanglement and the second-order coherence of Hawking radiation paying attention to the noise effect due to the thermality of Hawking radiation, which reduces the quantum correlation in the entanglement-harvesting protocol with two-qubit detectors.
format Preprint
id arxiv_https___arxiv_org_abs_2407_09218
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Second-Order Coherence as an Indicator of Quantum Entanglement of Hawking Radiation in Moving-Mirror Models
Tomonaga, Masanori
Nambu, Yasusada
Quantum Physics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
The second-order coherence of light is a widely recognized physical quantity used to assess the quantum characteristics of light, and its properties have been extensively investigated in the field of quantum optics. Recently, it has been proposed that second-order coherence can be utilized as an indicator of quantum entanglement. In this study, we evaluated the second-order coherence in the context of the moving-mirror model, which serves as an analog model for Hawking radiation from a black hole. We discuss the relation between entanglement and the second-order coherence of Hawking radiation paying attention to the noise effect due to the thermality of Hawking radiation, which reduces the quantum correlation in the entanglement-harvesting protocol with two-qubit detectors.
title Second-Order Coherence as an Indicator of Quantum Entanglement of Hawking Radiation in Moving-Mirror Models
topic Quantum Physics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
url https://arxiv.org/abs/2407.09218