Post-quench dynamics and suppression of thermalization in an open half-filled Hubbard layer. Blinov, I., V., Ribeiro, P., & Rubtsov, A., N. Physical Review B, 95(2):024309, 1, 2017.
Paper
Website abstract bibtex We study the time evolution of an half-field Hubbard layer coupled to a magnon bath after a quench of the Hubbard interaction. Qualitatively different regimes, regarding the asymptotic long time dynamics, are identified and characterized within the mean-field approximation. In the absence of the bath, the dynamics of the closed system is similar to that of a quenched BCS condensate. Though the presence of the bath introduces an additional relaxation mechanism, our numerical results and analytical arguments show that equilibration with the bath is not necessarily attained. % at least within the mean-field approximation. Instead, non-equilibrium states, similar to the ones observed in the closed system, can emerge at long times as a consequence of the competition between intrinsic relaxation mechanism, such as Landau damping, and the bath-induced dissipation.
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abstract = {We study the time evolution of an half-field Hubbard layer coupled to a magnon bath after a quench of the Hubbard interaction. Qualitatively different regimes, regarding the asymptotic long time dynamics, are identified and characterized within the mean-field approximation. In the absence of the bath, the dynamics of the closed system is similar to that of a quenched BCS condensate. Though the presence of the bath introduces an additional relaxation mechanism, our numerical results and analytical arguments show that equilibration with the bath is not necessarily attained. % at least within the mean-field approximation. Instead, non-equilibrium states, similar to the ones observed in the closed system, can emerge at long times as a consequence of the competition between intrinsic relaxation mechanism, such as Landau damping, and the bath-induced dissipation.},
bibtype = {article},
author = {Blinov, Igor V. and Ribeiro, Pedro and Rubtsov, A. N.},
journal = {Physical Review B},
number = {2}
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