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cond-mat.quant-gas2026
Weak Fragmentation and Thermalization in a Dipole-Conserving Bose-Hubbard Chain
Chenrong Liu
We study Hilbert-space fragmentation and thermalization in a one-dimensional dipole-conserving Bose-Hubbard chain. By analyzing the structure of the Hamiltonian matrix in the Fock…
physics.atom-ph2026
Photon-Atom Granularity Noise Thermometry
Chen-Rong Liu, Yixuan Wang, Xiaowei Wang +5
We propose granularity noise thermometry (GNT), a fluctuation-based optical thermometry scheme that exploits the intrinsic fluctuations of susceptibility arising from atomic discre…
quant-ph2026
Granularity Noise Limit in Atomic-Ensemble-Based Metrology
Chen-Rong Liu, Chuang Li, Runxia Tao +4
Conventional noise analysis in atomic-ensemble sensing assumes a continuous-medium approximation, thereby treating the atomic system as a deterministic dielectric. Here, we demonst…