A mean-field plus fluctuation approach using unitary transformations approximates the infinite-dimensional dynamics of two-mode Jaynes-Cummings model in the non-resonant regime.
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Moderate acceleration of an Unruh-DeWitt detector in a cylindrical cavity suppresses decoherence more effectively than the inertial case by smearing resonant modes and replacing off-resonant decay with oscillations.
In an N-qubit network with one conserved excitation, a single transition amplitude determines positivity and complete positivity of subsystem propagators, links them to excitation flow and Fisher information, and reveals an unvisited band of states inside the positivity domain.
citing papers explorer
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Mean-field and fluctuation dynamics in off-resonant two-mode atom-field interactions
A mean-field plus fluctuation approach using unitary transformations approximates the infinite-dimensional dynamics of two-mode Jaynes-Cummings model in the non-resonant regime.
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Cavity-controlled Inhibition of Decoherence in Accelerated Quantum Detectors
Moderate acceleration of an Unruh-DeWitt detector in a cylindrical cavity suppresses decoherence more effectively than the inertial case by smearing resonant modes and replacing off-resonant decay with oscillations.
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Excitation Flow, Positivity, and Fisher Information for Open Subsystems of an $N$-Qubit Network
In an N-qubit network with one conserved excitation, a single transition amplitude determines positivity and complete positivity of subsystem propagators, links them to excitation flow and Fisher information, and reveals an unvisited band of states inside the positivity domain.