Using an exact nonperturbative Unruh-DeWitt model with delta-switching, the authors find that vacuum interaction can amplify detector coherence while degrading detector entanglement.
Wang, et al ., Quantum coherence and interference of a single moir´ e exc iton in nano-fabricated twisted monolayer semiconductor heterobilayers, Nat
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Entangled Unruh-DeWitt detectors amplify quantum coherence
Using an exact nonperturbative Unruh-DeWitt model with delta-switching, the authors find that vacuum interaction can amplify detector coherence while degrading detector entanglement.