Back-action from Unruh-DeWitt detectors produces energy fluxes that exactly account for detector transitions due to the Unruh effect, including negative energy density regions near the Rindler horizon and in the far future for ground-state accelerated detectors.
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Non-commuting detector couplings in KMS states produce ordering-dependent reduced states at second order, with the asymmetry quantified by quantum relative entropy in a closed form depending on temperature and energy scale.
citing papers explorer
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Back-action from inertial and non-inertial Unruh-DeWitt detectors revisited in covariant perturbation theory
Back-action from Unruh-DeWitt detectors produces energy fluxes that exactly account for detector transitions due to the Unruh effect, including negative energy density regions near the Rindler horizon and in the far future for ground-state accelerated detectors.
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Thermal Time and Irreversibility from Non-Commuting Observables in Accelerated Quantum Systems
Non-commuting detector couplings in KMS states produce ordering-dependent reduced states at second order, with the asymmetry quantified by quantum relative entropy in a closed form depending on temperature and energy scale.