Tuesday, February 19, 2013

1302.4109 (Simone A. Hamerla et al.)

Dynamical Transition in Interaction Quenches of the One-Dimensional
Hubbard Model
   [PDF]

Simone A. Hamerla, Götz S. Uhrig
We show that the non-equilibrium time-evolution after interaction quenches in the one dimensional, integrable Hubbard model exhibits a dynamical transition in the half-filled case. This transition ceases to exist upon doping. Our study is based on systematically extended equations of motion. Thus it is controlled for small and moderate times; no relaxation effects are neglected. Remarkable similarities to the quench dynamics in the infinite dimensional Hubbard model are found suggesting dynamical transitions to be a general feature of quenches in such models.
View original: http://arxiv.org/abs/1302.4109

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