Sudden quenches in a pair of coupled oscillators produce exact or approximate thermalization of a quantum harmonic oscillator to arbitrary temperatures via solvable equations on the Gaussian covariance matrix.
Quantum harmonic oscillator state synthesis by reservoir engineering,
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Optimizing the squeezing phase in a correlated squeezed-thermal reservoir maximizes quantum Fisher information for phase and correlation parameters and reduces joint-estimation variance.
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Thermalization from quenching in coupled oscillators
Sudden quenches in a pair of coupled oscillators produce exact or approximate thermalization of a quantum harmonic oscillator to arbitrary temperatures via solvable equations on the Gaussian covariance matrix.
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From Independent to Joint: Enhancing Quantum Phase and Correlation Factor Estimation by Squeezed Reservoir Engineering
Optimizing the squeezing phase in a correlated squeezed-thermal reservoir maximizes quantum Fisher information for phase and correlation parameters and reduces joint-estimation variance.