Local quenches in chaotic quantum systems produce a Renyi-index-tuned hierarchy of entanglement transitions, with S_alpha>1 obeying area law while S_alpha<=1 is volume-law, carried by an O(1)-dimensional dominant Schmidt sector that itself exhibits similar transitions at lower critical indices.
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Srednicki, Phys
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Recurrence plots of two-site correlations in the quenched 1D transverse-field Ising model transition from periodic to multiscale structures across the ferromagnetic-to-paramagnetic transition, and recurrence quantifiers recover the critical field strength in an unsupervised manner.
fTDHF extends time-dependent Hartree-Fock to fermionized spin-1/2 Hamiltonians, remaining exact for free fermions while handling non-local strings via non-orthogonal Slater determinant transitions and reproducing qualitative dynamics in three benchmark models.
Asymptotic quantum many-body scars in SU(N) Hubbard chains are realized explicitly as gapless magnons of an embedded SU(N) ferromagnetic Heisenberg parent Hamiltonian.
An ETH-ansatz-based environmental-branch method derives master equations for open quantum systems by simplifying branch evolution over short time intervals, yielding decoherence rates consistent with random-matrix theory and justifying the Born approximation.
Prethermal discrete time crystals in driven dipolar 13C spins enable frequency-selective AC magnetic field sensing with up to three orders of magnitude lifetime extension via resonant response.
Trapped-ion quantum processor experimentally realizes 2D non-equilibrium steady states of hard-core bosons and fermions with source-drain driving, showing measurable effects from statistics, interactions, and magnetic fields.
A dissipative protocol with nonreciprocal auxiliary atoms stabilizes arbitrary correlated states across the many-body spectrum in Rydberg arrays.
Domain-wall magnetization persists indefinitely in coupled XX chains due to exponentially many chiral symmetry-protected zero modes, with a localization transition at critical interchain coupling.
Higher moments of the projected process ensemble reveal entanglement structures that distinguish chaotic from integrable dynamics more sharply than quantum dynamical or spatiotemporal entropies.
A non-chaotic mean-ergodic system from the double kicked top exhibits strong ETH with D^{-1/2} diagonal fluctuations and parameter-independent off-diagonal distributions.
Low-energy eigenstates of a spin chain allow a neural network to reconstruct the Hamiltonian accurately, while mid-spectrum eigenstates do not, defining a spectral 'learnability' gap.
citing papers explorer
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Hierarchical entanglement transitions and hidden area-law sectors in quantum many-body dynamics
Local quenches in chaotic quantum systems produce a Renyi-index-tuned hierarchy of entanglement transitions, with S_alpha>1 obeying area law while S_alpha<=1 is volume-law, carried by an O(1)-dimensional dominant Schmidt sector that itself exhibits similar transitions at lower critical indices.
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Recurrence analysis of quantum many-body dynamics
Recurrence plots of two-site correlations in the quenched 1D transverse-field Ising model transition from periodic to multiscale structures across the ferromagnetic-to-paramagnetic transition, and recurrence quantifiers recover the critical field strength in an unsupervised manner.
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Fermionic mean-field dynamics for spin systems beyond free fermions
fTDHF extends time-dependent Hartree-Fock to fermionized spin-1/2 Hamiltonians, remaining exact for free fermions while handling non-local strings via non-orthogonal Slater determinant transitions and reproducing qualitative dynamics in three benchmark models.
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Construction of asymptotic quantum many-body scar states in the SU($N$) Hubbard model
Asymptotic quantum many-body scars in SU(N) Hubbard chains are realized explicitly as gapless magnons of an embedded SU(N) ferromagnetic Heisenberg parent Hamiltonian.
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An ETH-ansatz-motivated environmental-branch approach to open quantum systems
An ETH-ansatz-based environmental-branch method derives master equations for open quantum systems by simplifying branch evolution over short time intervals, yielding decoherence rates consistent with random-matrix theory and justifying the Born approximation.
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Sensing with discrete time crystals
Prethermal discrete time crystals in driven dipolar 13C spins enable frequency-selective AC magnetic field sensing with up to three orders of magnitude lifetime extension via resonant response.
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Quantum trajectory simulation of two-dimensional non-equilibrium steady states with a trapped ion quantum processor
Trapped-ion quantum processor experimentally realizes 2D non-equilibrium steady states of hard-core bosons and fermions with source-drain driving, showing measurable effects from statistics, interactions, and magnetic fields.
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Dissipative Preparation of Correlated Quantum States in Dipolar Rydberg Arrays
A dissipative protocol with nonreciprocal auxiliary atoms stabilizes arbitrary correlated states across the many-body spectrum in Rydberg arrays.
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Magnetic domains stabilized by symmetry-protected zero modes
Domain-wall magnetization persists indefinitely in coupled XX chains due to exponentially many chiral symmetry-protected zero modes, with a localization transition at critical interchain coupling.
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Diagnosing chaos with projected ensembles of process tensors
Higher moments of the projected process ensemble reveal entanglement structures that distinguish chaotic from integrable dynamics more sharply than quantum dynamical or spatiotemporal entropies.
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Strong Eigenstate Thermalization from Mean-Ergodic Non-chaotic Dynamics
A non-chaotic mean-ergodic system from the double kicked top exhibits strong ETH with D^{-1/2} diagonal fluctuations and parameter-independent off-diagonal distributions.
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Information in Many-body Eigenstates: A Question of Learnability
Low-energy eigenstates of a spin chain allow a neural network to reconstruct the Hamiltonian accurately, while mid-spectrum eigenstates do not, defining a spectral 'learnability' gap.