CANP enhances quantum Fisher information by using noncommutativity between critical state preparation and parameter encoding, demonstrated in the quantum Rabi and Lipkin-Meshkov-Glick models at fixed resources.
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Dynamical quantum phase transitions in free-fermion quantum batteries produce nonanalytic singularities in long-time stored energy by making critical momentum modes charge perfectly at specific times.
Under Floquet ETH, the trace distance between energy-filtered and thermal states is bounded by O(√δ), where δ is the filter width.
Entangled false-vacuum initial states in 2D quantum Ising dynamics suppress small-domain nucleation and drive macroscopic cluster formation, with boundary pinning yielding large magnetisation fluctuations.
An alternative open boundary condition in the Ising chain maps the system to two Kitaev chains, switching the topological degeneracy due to gauge dependence of the SSH winding number.
Z2 skin channels in non-Hermitian systems with ATRS exhibit circulations that imply quantum revivals and scale-dependent effective DQPTs distinct from conventional ones.
Periodic driving induces DQPTs in the 1D Ising model via resonance within a phase (linked to Floquet topology) or low-frequency crossing of the critical point due to energy degeneracy.
Certain Hamiltonian deformations preserve the Krylov subspace, yielding generalized Toda equations and allowing imaginary-time dynamics to be recast as real-time unitary evolution, with applications to thermodynamic states and supersymmetric systems.
Derives a quantum speed limit for the OTOC decay rate by mapping scrambling to open-system decoherence bounded by system-environment coupling strength and environmental correlation functions.
Introduces statistical dynamical quantum phase transitions via Born-rule sampling of post-measurement states in quenched Ising chains, recovering DQPT features in high moments and proposing a measurement-based simulation protocol.
citing papers explorer
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Enhanced quantum metrology by criticality-assisted noncommutative preparation
CANP enhances quantum Fisher information by using noncommutativity between critical state preparation and parameter encoding, demonstrated in the quantum Rabi and Lipkin-Meshkov-Glick models at fixed resources.
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Dynamical Criticality Behind Energy-Storage Singularities in Quantum Batteries
Dynamical quantum phase transitions in free-fermion quantum batteries produce nonanalytic singularities in long-time stored energy by making critical momentum modes charge perfectly at specific times.
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How thermal is a filtered state?
Under Floquet ETH, the trace distance between energy-filtered and thermal states is bounded by O(√δ), where δ is the filter width.
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Entanglement-facilitated macroscopic cluster formation in quantum many-body dynamics
Entangled false-vacuum initial states in 2D quantum Ising dynamics suppress small-domain nucleation and drive macroscopic cluster formation, with boundary pinning yielding large magnetisation fluctuations.
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Boundary-dependent topological degeneracy in an Ising chain
An alternative open boundary condition in the Ising chain maps the system to two Kitaev chains, switching the topological degeneracy due to gauge dependence of the SSH winding number.
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$\mathbb{Z}_{2}$ Skin Channels and Effective Dynamical Quantum Phase Transitions
Z2 skin channels in non-Hermitian systems with ATRS exhibit circulations that imply quantum revivals and scale-dependent effective DQPTs distinct from conventional ones.
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Dynamical Phase Transitions in Periodically Driving 1D Ising Model
Periodic driving induces DQPTs in the 1D Ising model via resonance within a phase (linked to Floquet topology) or low-frequency crossing of the critical point due to energy degeneracy.
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Krylov Complexity Under Hamiltonian Deformations and Toda Flows
Certain Hamiltonian deformations preserve the Krylov subspace, yielding generalized Toda equations and allowing imaginary-time dynamics to be recast as real-time unitary evolution, with applications to thermodynamic states and supersymmetric systems.
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Quantum speed limit for the OTOC from an open systems perspective
Derives a quantum speed limit for the OTOC decay rate by mapping scrambling to open-system decoherence bounded by system-environment coupling strength and environmental correlation functions.
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Born-rule statistical dynamical quantum phase transitions under measurement
Introduces statistical dynamical quantum phase transitions via Born-rule sampling of post-measurement states in quenched Ising chains, recovering DQPT features in high moments and proposing a measurement-based simulation protocol.