Preprint
Oct 2026
Anomalously fast heating of ground states in dephased $SU(N)$ spin systems
We identify a strong quantum Mpemba effect in which a many-body ground state heats faster than every Gibbs state at finite positive temperature under the same dissipative dynamics within a fixed-color sector. In ferromagnetic $SU(N)$ exchange systems with local dephasing, exact coherence shells confine the ground-state...
Tairan Lou, Jun-Xiao Chen, Xiang-Ping Jiang et al.
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