A disorder marker derived from central moments of disorder distributions classifies quantum probes and exhibits quadratic dependence on weak identical disorder strength, enabling estimation of maximum tolerable disorder directly from the clean probe Hamiltonian and initial state.
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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.
A generalized coherent-state framework computes many-body density of states in irreducible sectors, supplies rigorous ground-state energy bounds, and identifies quantum and excited-state phase transitions in the LMG model and long-range Ising chains.
citing papers explorer
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Robust quantum metrology using disordered probes
A disorder marker derived from central moments of disorder distributions classifies quantum probes and exhibits quadratic dependence on weak identical disorder strength, enabling estimation of maximum tolerable disorder directly from the clean probe Hamiltonian and initial state.
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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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A Generalized Coherent State Framework for Many-Body Density of States
A generalized coherent-state framework computes many-body density of states in irreducible sectors, supplies rigorous ground-state energy bounds, and identifies quantum and excited-state phase transitions in the LMG model and long-range Ising chains.