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Dynamics of in-medium quarkonia in SU(3) and SU(2) gauge theories
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abstract
Decoherence dynamics of quarkonia is studied in the high-temperature deconfined phase of SU($N_c$) gauge theories. In particular, we analyze the symmetry properties of SU($N_c$) stochastic potential model and find a novel "event-by-event" symmetry for $N_c=2$ case, similar to the $G$-parity of hadronic systems. This novel symmetry constrains the relation between diagonal and off-diagonal components of quarkonium density matrix, leaving the latter to be finite at late times. We also present one-dimensional numerical simulation of the model, which indicates the usefulness of the complex potential simulations for the quarkonium survival probabilities in relativistic heavy-ion collisions, provided that the effect of dissipation can be neglected.
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Cited by 1 Pith paper
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Effective field theory for dissipative photons from higher-form symmetries
A Schwinger-Keldysh effective action built on spontaneously broken higher-form symmetry gives dissipative Maxwell equations with an entropy current for photons in insulators.
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