Kibble-Zurek scaling of the one-dimensional Bose-Hubbard model at finite temperatures

Autor:	Weiss, Werner, Gerster, Matthias, Jaschke, Daniel, Silvi, Pietro, Montangero, Simone
Rok vydání:	2018
Předmět:	Quantum Physics Condensed Matter - Statistical Mechanics
Zdroj:	Phys. Rev. A 98, 063601 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.98.063601
Popis:	We use tensor network methods - Matrix Product States, Tree Tensor Networks, and Locally Purified Tensor Networks - to simulate the one dimensional Bose-Hubbard model for zero and finite temperatures in experimentally accessible regimes. We first explore the effect of thermal fluctuations on the system ground state by characterizing its Mott and superfluid features. Then, we study the behavior of the out-of-equilibrium dynamics induced by quenches of the hopping parameter. We confirm a Kibble-Zurek scaling for zero temperature and characterize the finite temperature behavior, which we explain by means of a simple argument. Comment: 13 pages, 12 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1808.04649 Zobrazit plný text záznamu View this record from Arxiv