A measurement-adapted coarse-graining method derives a fourth-order effective quantum master equation for open quantum systems, with analytical parameters, regularization for singularities, and demonstration on superconducting qubit readout dynamics.
Kehrein ,\ 10.1007/3-540-34068-8 title The flow equation approach to many-particle systems ,\ Vol.\ volume 217 \ ( publisher Springer ,\ year 2006 ) NoStop
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Secondary phase and amplitude modes emerge below the quasiparticle continuum in intermediate-to-strong-coupling isotropic superconductors due to energy-transfer-dependent interactions, computed via iterated equations of motion on Bravais lattices.
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Model Order Reduction for Open Quantum Systems Based on Measurement-adapted Time-coarse Graining
A measurement-adapted coarse-graining method derives a fourth-order effective quantum master equation for open quantum systems, with analytical parameters, regularization for singularities, and demonstration on superconducting qubit readout dynamics.
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Secondary Collective Excitations in Intermediate to Strong-Coupling Superconductors
Secondary phase and amplitude modes emerge below the quasiparticle continuum in intermediate-to-strong-coupling isotropic superconductors due to energy-transfer-dependent interactions, computed via iterated equations of motion on Bravais lattices.