Tuning a chaos parameter drives an exceptional-point transition in reset-driven Floquet channel spectra from real eigenvalues in an ergodic regime to complex pairs in a chaotic regime, distinguishing multiple dynamical phases.
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Exact condensate-pair eigenstates are built for Fermi ladders under SU(2) symmetry via spectrum generating algebra and mapped to Bose ladders by operator replacement, revealing pair equivalence and a possible Hilbert-space fragmentation mechanism.
In the random-field XXZ model, Wehrl-Rényi entropy growth for z-polarized product states shows non-monotonic dependence on initial entanglement, with the first regime set by local integrals of motion and the second by inter-site correlations.
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Chaos Emerge with Exceptional Points in Reset-Driven Floquet Dynamics
Tuning a chaos parameter drives an exceptional-point transition in reset-driven Floquet channel spectra from real eigenvalues in an ergodic regime to complex pairs in a chaotic regime, distinguishing multiple dynamical phases.
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Condensate states in Fermi and Bose-Hubbard ladders
Exact condensate-pair eigenstates are built for Fermi ladders under SU(2) symmetry via spectrum generating algebra and mapped to Bose ladders by operator replacement, revealing pair equivalence and a possible Hilbert-space fragmentation mechanism.
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Entanglement Growth from Structured Initial States in Many-Body Localized Systems
In the random-field XXZ model, Wehrl-Rényi entropy growth for z-polarized product states shows non-monotonic dependence on initial entanglement, with the first regime set by local integrals of motion and the second by inter-site correlations.