Switching Hamiltonians at a tunable time enhances time-averaged separation of local observables between initial states in Ising chains up to N=12.
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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.
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.
LogK complexity via replicas distinguishes genuine scrambling from saddle effects in quantum and classical systems and refines the measure for integrable cases.
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.
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.
Constraint mismatch at the junction of two PXP chains creates a tunable kinematic barrier to quantum information flow and fragments the Hilbert space into disjoint sectors.
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.
The chaotic phase of the tilted Bose-Hubbard model is identified via eigenstate structure and energy spectrum statistics as a function of energy, tilt strength, and interaction, with moderate tilt enhancing chaos and a phase diagram provided for homogeneous density setups.
citing papers explorer
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Enhancing Initial-State Sensitivity through Time-Dependent Hamiltonian Readout in Ising Spin Chains
Switching Hamiltonians at a tunable time enhances time-averaged separation of local observables between initial states in Ising chains up to N=12.
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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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Towards a Refinement of Krylov Complexity: Scrambling, Classical Operator Growth and Replicas
LogK complexity via replicas distinguishes genuine scrambling from saddle effects in quantum and classical systems and refines the measure for integrable cases.
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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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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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Tunable information insulation induced by constraint mismatch
Constraint mismatch at the junction of two PXP chains creates a tunable kinematic barrier to quantum information flow and fragments the Hilbert space into disjoint sectors.
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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.
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Characterization of the chaotic phase in the tilted Bose-Hubbard model
The chaotic phase of the tilted Bose-Hubbard model is identified via eigenstate structure and energy spectrum statistics as a function of energy, tilt strength, and interaction, with moderate tilt enhancing chaos and a phase diagram provided for homogeneous density setups.