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Mode-Coupling-Induced Dissipative and Thermal Effects at Long Times after a Quantum Quench

Published inPhysical review letters, vol. 107, no. 15
Publication date2011
Abstract

An interaction quench in a Luttinger liquid can drive it into an athermal steady state. We analyze the effects on such an out of equilibrium state of a mode coupling term due to a periodic potential. Employing a perturbative renormalization group approach we show that even when the periodic potential is an irrelevant perturbation in equilibrium, it has important consequences on the athermal steady state as it generates a temperature as well as a dissipation and hence a finite lifetime for the bosonic modes.

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MITRA, Aditi, GIAMARCHI, Thierry. Mode-Coupling-Induced Dissipative and Thermal Effects at Long Times after a Quantum Quench. In: Physical review letters, 2011, vol. 107, n° 15. doi: 10.1103/PhysRevLett.107.150602
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ISSN of the journal0031-9007
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