Magnetic materials described by an effective Dicke model exhibit perturbatively stable ground-state squeezing near a superradiant transition, providing a resource for quantum metrology and entanglement witnessing.
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A symmetry-organized configuration framework classifies superradiant phases in Dicke lattices, explaining multistability in dissipative cases and unique ground-state selection in closed systems.
Transverse interactions in Dicke QBs induce collective spin squeezing for exponential coupling boost and act as nonlinear torque to guide optimal charging paths, remaining robust under dissipation and sometimes outperforming ideal cases.
Photon-number measurements near the Dicke superradiant phase transition herald collective spin cat states whose size grows with photon number and criticality.
Two-photon parametric amplification in a superconducting circuit exponentially strengthens cavity-qubit coupling, enabling faster charging and decoherence-resistant energy storage in a quantum battery.
Nonadiabatic modulation near a quantum critical point strongly boosts photon emission from vacuum fluctuations, enhancing flux and non-classical properties even against thermal noise.
Displaced number states in the quantum Rabi model converge to the corresponding semiclassical dynamics in the joint limit of vanishing coupling and infinite displacement, with convergence slowing as the Fock number n increases.
Superradiant phase transition in the anisotropic Rabi model arises from competition among three Hamiltonian patterns and is equivalently simulated by a parametrically-driven Jaynes-Cummings model where excitation energies vanish at criticality.
citing papers explorer
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Dicke materials as a resource for quantum squeezing
Magnetic materials described by an effective Dicke model exhibit perturbatively stable ground-state squeezing near a superradiant transition, providing a resource for quantum metrology and entanglement witnessing.
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Configuration-based understanding of superradiant phase transitions in Dicke lattices
A symmetry-organized configuration framework classifies superradiant phases in Dicke lattices, explaining multistability in dissipative cases and unique ground-state selection in closed systems.
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Spin-Squeezing-Enhanced Charging for Quantum Dicke Batteries
Transverse interactions in Dicke QBs induce collective spin squeezing for exponential coupling boost and act as nonlinear torque to guide optimal charging paths, remaining robust under dissipation and sometimes outperforming ideal cases.
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Generating collective spin cat states via photon-number measurements near the Dicke critical point
Photon-number measurements near the Dicke superradiant phase transition herald collective spin cat states whose size grows with photon number and criticality.
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Quantum battery optimized by parametric amplification
Two-photon parametric amplification in a superconducting circuit exponentially strengthens cavity-qubit coupling, enabling faster charging and decoherence-resistant energy storage in a quantum battery.
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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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Convergence to semiclassicality in the quantum Rabi model
Displaced number states in the quantum Rabi model converge to the corresponding semiclassical dynamics in the joint limit of vanishing coupling and infinite displacement, with convergence slowing as the Fock number n increases.
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Dissecting the superradiant phase transition in the anisotropic Rabi model: Pattern competition and cavity-QED simulation
Superradiant phase transition in the anisotropic Rabi model arises from competition among three Hamiltonian patterns and is equivalently simulated by a parametrically-driven Jaynes-Cummings model where excitation energies vanish at criticality.