In a dipole-conserving Bose-Hubbard chain, weak Hilbert-space fragmentation permits thermalization at weak interactions but yields nonergodicity at strong interactions, shown via analytical bounds on frozen states and exact diagonalization of entanglement, relaxation, and level statistics.
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A driven dipole-conserving Bose-Hubbard model realizes controllable resonant splitting and motion of dipoles and fractons via engineered time-dependent tensor electric fields.
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Weak Fragmentation and Thermalization in a Dipole-Conserving Bose-Hubbard Chain
In a dipole-conserving Bose-Hubbard chain, weak Hilbert-space fragmentation permits thermalization at weak interactions but yields nonergodicity at strong interactions, shown via analytical bounds on frozen states and exact diagonalization of entanglement, relaxation, and level statistics.
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Resonant dynamics of dipole-conserving Bose-Hubbard model with time-dependent tensor electric fields
A driven dipole-conserving Bose-Hubbard model realizes controllable resonant splitting and motion of dipoles and fractons via engineered time-dependent tensor electric fields.