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cond-mat.stat-mech2026
Correspondence between Asymptotic Quantum Many-Body Scars in Closed Systems and Diffusive Nambu-Goldstone Modes in Open Systems
Masaya Kunimi, Taiki Haga, Masaya Nakagawa
Hydrodynamic relaxation in open quantum many-body systems can be understood in terms of diffusive Nambu--Goldstone (NG) modes associated with strong-to-weak spontaneous symmetry br…
quant-ph2026
Discontinuous strong-to-weak symmetry breaking transition from thermal pure states
Taiki Haga, Masaya Kunimi, Masaya Nakagawa
We investigate the nonequilibrium dynamics of strong-to-weak spontaneous symmetry breaking in many-body quantum systems undergoing decoherence from thermal pure states. For generic…