Genuine tripartite entanglement in graviton-matter interactions
We demonstrate the existence of genuine tripartite non-Gaussian entanglement in a quantum gravitational system formed by a quantum harmonic oscillator coupled to a single frequency of a quantized gravitational wave. For this purpose, we introduce an entanglement witness, well suited for the graviton...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:dnet:digitalcsic_::4b534cd4f6aa030ac318a6f037fee89e |
| Acceso en línea: | http://hdl.handle.net/10261/428021 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85219514592&doi=10.1103%2FPhysRevA.111.022444&partnerID=40&md5=07d4b47045faa7354794afadccdf8cc6 |
| Access Level: | acceso abierto |
| Palabra clave: | Gravitational effects Quantum entanglement Entanglement witness Gaussian entanglement Gravitational systems Gravitational-waves Mode-state Multipartite quantum entanglement Non-Gaussian Quantum harmonic oscillators Single-frequency Tripartite entanglement Hamiltonians |
| Sumario: | We demonstrate the existence of genuine tripartite non-Gaussian entanglement in a quantum gravitational system formed by a quantum harmonic oscillator coupled to a single frequency of a quantized gravitational wave. For this purpose, we introduce an entanglement witness, well suited for the graviton-matter interaction Hamiltonian analyzed here. We show that the witness is nonzero for the three-mode states generated by the Hamiltonian when the system starts in the ground state, thus proving the generation of genuine multipartite quantum entanglement at the most fundamental level of theoretical graviton-matter interactions. © 2025 American Physical Society. |
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