Transport through interacting defects and lack of thermalisation

Autor:	Del Vecchio, Giuseppe Del Vecchio, De Luca, Andrea, Bastianello, Alvise
Rok vydání:	2021
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Quantum Gases Nonlinear Sciences - Chaotic Dynamics Nonlinear Sciences - Exactly Solvable and Integrable Systems
Zdroj:	SciPost Phys. 12, 060 (2022)
Druh dokumentu:	Working Paper
DOI:	10.21468/SciPostPhys.12.2.060
Popis:	We consider 1D integrable systems supporting ballistic propagation of excitations, perturbed by a localised defect that breaks most conservation laws and induces chaotic dynamics. Focusing on classical systems, we study an out-of-equilibrium protocol engineered activating the defect in an initially homogeneous and far from the equilibrium state. We find that large enough defects induce full thermalisation at their center, but nonetheless the outgoing flow of carriers emerging from the defect is non-thermal due to a generalization of the celebrated Boundary Thermal Resistance effect, occurring at the edges of the chaotic region. Our results are obtained combining ab-initio numerical simulations for relatively small-sized defects, with the solution of the Boltzmann equation, which becomes exact in the scaling limit of large, but weak defects. Comment: 21 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2104.13887 Zobrazit plný text záznamu View this record from Arxiv