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Genuine tripartite entanglement in graviton-matter interactions

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arxiv 2411.03293 v4 pith:HNBMHOZU submitted 2024-11-05 quant-ph

Genuine tripartite entanglement in graviton-matter interactions

classification quant-ph
keywords entanglementgenuinegraviton-matterquantumgravitationalhamiltonianinteractionssystem
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 a new entanglement witness, well-suited for the graviton-matter interaction Hamiltonian analysed here. We show that the witness is non-zero 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.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Witnessing entanglement between photon and matter due to graviton exchange

    quant-ph 2026-04 unverdicted novelty 6.0

    A PPT witness criterion is proposed to detect graviton-mediated entanglement between photons and matter qubits, attaining a maximal negativity of -0.052 for non-maximally entangled states when the photon coherent-stat...

  2. Graviton-mediated entanglement due to light bending from a quantum rotor

    quant-ph 2026-06 unverdicted novelty 5.0

    Virtual graviton exchange between a photon and a high-spinning quantum rotor generates entanglement between photon degrees of freedom and rotor position, with prograde-retrograde motion yielding observable differences...

  3. Quantum gravitational contrast in creating Schr\"odinger cat state

    gr-qc 2026-05 unverdicted novelty 5.0

    A matter-wave interferometer with a Schrödinger cat state displaces the graviton vacuum into coherent states, with the left-right overlap providing a gravitational contrast that quantifies entanglement between matter ...