Optimizing the squeezing phase in a correlated squeezed-thermal reservoir maximizes quantum Fisher information for phase and correlation parameters and reduces joint-estimation variance.
Squeezed generalized amplitude damping channel
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Negative quantum states from discrete Wigner functions show resilience advantages over Bell states under non-Markovian dynamics, are protected via weak measurements, and are realized on IBM superconducting hardware.
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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.
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Discrete and Continuous Wigner Functions in Open Quantum Systems: Non-Markovian and Thermodynamic Effects
Negative quantum states from discrete Wigner functions show resilience advantages over Bell states under non-Markovian dynamics, are protected via weak measurements, and are realized on IBM superconducting hardware.