Analytic expressions for the two-qubit mean-force Gibbs state show that reservoir-mediated entanglement is highest at low temperature, non-monotonic in coupling strength, and can be enhanced by broadening the reservoir spectral density.
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Partial projected ensembles from Haar-random states and scrambling circuits exhibit two information phases in Holevo information: exponential decay versus linear growth with system size, separated by sharp transitions and revealing a measurement-invisible quantum-correlated phase.
Nonadiabatic modulation near a quantum critical point strongly boosts photon emission from vacuum fluctuations, enhancing flux and non-classical properties even against thermal noise.
Hermite expansions enable closed-form computation and optimization of entanglement harvesting negativity for arbitrary temporal profiles, increasing harvested entanglement by orders of magnitude beyond second-order perturbation theory.
Postselection on continuous monitoring of spontaneous emission slows entanglement decay in a two-transmon system and reveals exceptional points with PT-symmetric phases in the interaction frame.
A hybrid system with optical, magnonic, and atomic components enables all-optical control of bipartite and multipartite quantum entanglements and steerings via polarization and coupling adjustments.
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Reservoir-mediated spin entanglement in the mean-force Gibbs state
Analytic expressions for the two-qubit mean-force Gibbs state show that reservoir-mediated entanglement is highest at low temperature, non-monotonic in coupling strength, and can be enhanced by broadening the reservoir spectral density.
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Information phases of partial projected ensembles generated from random quantum states and scrambling dynamics
Partial projected ensembles from Haar-random states and scrambling circuits exhibit two information phases in Holevo information: exponential decay versus linear growth with system size, separated by sharp transitions and revealing a measurement-invisible quantum-correlated phase.
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Quantum Vacuum Radiation Near a Critical Point
Nonadiabatic modulation near a quantum critical point strongly boosts photon emission from vacuum fluctuations, enhancing flux and non-classical properties even against thermal noise.
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Optimization of entanglement harvesting with arbitrary temporal profiles: the limit of second order perturbation theory
Hermite expansions enable closed-form computation and optimization of entanglement harvesting negativity for arbitrary temporal profiles, increasing harvested entanglement by orders of magnitude beyond second-order perturbation theory.
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Entanglement Dynamics in a Two Transmon Qubit System under Continuous Measurement and Postselection
Postselection on continuous monitoring of spontaneous emission slows entanglement decay in a two-transmon system and reveals exceptional points with PT-symmetric phases in the interaction frame.
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Manipulation of diverse quantum correlations based on a hybrid optomagnomechanical system
A hybrid system with optical, magnonic, and atomic components enables all-optical control of bipartite and multipartite quantum entanglements and steerings via polarization and coupling adjustments.