Coherent enhancement in detectors is quantitatively constrained by single-mode entanglement entropy, with general bounds on scaling with system size that interpolate between incoherent and fully coherent regimes.
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The paper formulates dark matter detection in matter-wave interferometers as an open-system problem using Schwinger-Keldysh effective field theory, revealing channel asymmetries and Bose/Pauli factors for elastic scattering.
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Entanglement Requirements for Coherent Enhancement in Detectors
Coherent enhancement in detectors is quantitatively constrained by single-mode entanglement entropy, with general bounds on scaling with system size that interpolate between incoherent and fully coherent regimes.
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Matter-Wave Interferometers as Open-System Dark Matter Detectors
The paper formulates dark matter detection in matter-wave interferometers as an open-system problem using Schwinger-Keldysh effective field theory, revealing channel asymmetries and Bose/Pauli factors for elastic scattering.