Topological quantum critical points exhibit anomalous dynamical scaling in boundary dynamics and defect production due to edge modes, beyond conventional Kibble-Zurek scaling.
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The diagonal metric response of quantum relative entropy yields a susceptibility that diverges at quantum critical points in spin chains, with square-log divergence in the TFIM and power-law in a non-integrable three-spin Ising chain.
Closed-form formula computes non-local magic for fermionic Gaussian states from two-point correlations in polynomial time.
Coherently synchronized oscillations appear in mirror-symmetric MBL systems and undergo a synchronization transition that maps to a paramagnetic-ferromagnetic Ising transition in an effective model built from local integrals of motion.
Analytical QFI calculations for finite-size spin chain at strong coupling show thermometry advantages at low T and large errors from neglecting FS effects or using phenomenological models.
citing papers explorer
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Anomalous Dynamical Scaling at Topological Quantum Criticality
Topological quantum critical points exhibit anomalous dynamical scaling in boundary dynamics and defect production due to edge modes, beyond conventional Kibble-Zurek scaling.
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Metric response of relative entropy: A universal indicator of quantum criticality
The diagonal metric response of quantum relative entropy yields a susceptibility that diverges at quantum critical points in spin chains, with square-log divergence in the TFIM and power-law in a non-integrable three-spin Ising chain.
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Non-Local Magic Resources for Fermionic Gaussian States
Closed-form formula computes non-local magic for fermionic Gaussian states from two-point correlations in polynomial time.
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Coherently synchronized oscillations in many-body localization
Coherently synchronized oscillations appear in mirror-symmetric MBL systems and undergo a synchronization transition that maps to a paramagnetic-ferromagnetic Ising transition in an effective model built from local integrals of motion.
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Finite-Size Effects in Quantum Metrology at Strong Coupling: Microscopic vs Phenomenological Approaches
Analytical QFI calculations for finite-size spin chain at strong coupling show thermometry advantages at low T and large errors from neglecting FS effects or using phenomenological models.