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Spontaneous entanglement leakage of two static entangled Unruh-DeWitt detectors

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arxiv 2211.00383 v2 pith:TD3I5L5N submitted 2022-11-01 quant-ph gr-qchep-th

Dipankar Barman , Angshuman Choudhury , Bhushan Kad , Bibhas Ranjan Majhi This is my paper · ORCID
classification quant-phgr-qchep-th
keywords detectorsentangledentanglementenvironmentspontaneousunruh-dewittbecomeblack
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Two entangled two-level Unruh-DeWitt detectors, which are in rest, spontaneously loose entanglement when at least any one of them is not isolated from the environment quantum fields. For eternal interaction between the detectors and environment, the spontaneous emission from the detectors' exited states and vacuum fluctuations of field influence this negative effect. Consequently, it suggests that two entangled qubits become less communicated during their free-fall towards the black hole horizon.

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  1. Can spacetime fluctuations generate entanglement between co-moving accelerated detectors?

    gr-qc 2025-04 conditional novelty 6.0 of 10

    Two uniformly accelerated Unruh-DeWitt detectors in nested Rindler frames harvest shift-independent entanglement from the Rindler vacuum whenever their trajectories are separated by any nonzero amount.

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