Variable detuning in Rydberg arrays induces strong Hilbert-space fragmentation whose fragment dimensions exhibit multiple scaling behaviors, with emergent kinetic constraints captured by an auxiliary fermion description.
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Many-body quantum beats — interaction-modulated amplitude oscillations of two hopping pairs — explain the slow number-entropy growth in quasiperiodic MBL systems and are consistent with MBL stability.
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.
In the long-range Haldane-Shastry model, pristine Poisson level statistics emerge only with combined position disorder and random magnetic fields, with an approximate scaling collapse governed by the product αδ when SU(2) symmetry is broken.
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Emergent Kinetic Constraints and Subspace Fragmentation in Rydberg Arrays
Variable detuning in Rydberg arrays induces strong Hilbert-space fragmentation whose fragment dimensions exhibit multiple scaling behaviors, with emergent kinetic constraints captured by an auxiliary fermion description.
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Quantum Beats in Many-Body Localized Systems
Many-body quantum beats — interaction-modulated amplitude oscillations of two hopping pairs — explain the slow number-entropy growth in quasiperiodic MBL systems and are consistent with MBL stability.
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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.
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Level statistics of the disordered Haldane-Shastry model with $1/r^\alpha$ interaction
In the long-range Haldane-Shastry model, pristine Poisson level statistics emerge only with combined position disorder and random magnetic fields, with an approximate scaling collapse governed by the product αδ when SU(2) symmetry is broken.