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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Engineered two-photon loss mitigates single-photon loss in TPD-Kerr systems by converting oscillatory decay to monotonic and extending metrological windows over an order of magnitude via non-Gaussian cat states.
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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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Quantum metrology via mitigation of single-photon loss using an engineered nonlinear oscillator
Engineered two-photon loss mitigates single-photon loss in TPD-Kerr systems by converting oscillatory decay to monotonic and extending metrological windows over an order of magnitude via non-Gaussian cat states.