Entanglement of Free Fermions and Bosons at Finite Temperature

Autor:	Drut, Joaquín E., Porter, William J.
Rok vydání:	2015
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Quantum Gases High Energy Physics - Theory Quantum Physics
Zdroj:	J. Phys. A, 50, 145304 (2017)
Druh dokumentu:	Working Paper
DOI:	10.1088/1751-8121/aa612d
Popis:	We generalize techniques previously used to compute ground-state properties of one-dimensional noninteracting quantum gases to obtain exact results at finite temperature. We compute the order-n R\'enyi entanglement entropy to all orders in the fugacity in one, two, and three spatial dimensions. In all spatial dimensions, we provide closed-form expressions for its virial expansion up to next-to-leading order. In all of our results, we find explicit volume scaling in the high-temperature limit. Comment: 8 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1510.01723 Zobrazit plný text záznamu View this record from Arxiv