Article
Cooling Atomic Gases With Disorder
Physical Review Letters
(2015)
Abstract
Cold atomic gases have proven capable of emulating a number of fundamental condensed matter phenomena including Bose-Einstein condensation, the Mott transition, Fulde-Ferrell-Larkin-Ovchinnikov pairing, and the quantum Hall effect. Cooling to a low enough temperature to explore magnetism and exotic superconductivity in lattices of fermionic atoms remains a challenge. We propose a method to produce a low temperature gas by preparing it in a disordered potential and following a constant entropy trajectory to deliver the gas into a nondisordered state which exhibits these incompletely understood phases. We show, using quantum Monte Carlo simulations, that we can approach the Néel temperature of the three-dimensional Hubbard model for experimentally achievable parameters. Recent experimental estimates suggest the randomness required lies in a regime where atom transport and equilibration are still robust.
Disciplines
Publication Date
December, 2015
DOI
10.1103/PhysRevLett.115.240402
Publisher Statement
This article originally appeared in Physical Review Letters, volume 115, issue 24, 2015, published by the American Physical Society. ©2015 American Physical Society. The article can also be found online at this link.
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Citation Information
Ehsan Khatami, Thereza Paiva, Shuxiang Yang, Valéry Rousseau, et al.. "Cooling Atomic Gases With Disorder" Physical Review Letters Vol. 115 Iss. 24 (2015) ISSN: 0031-9007 Available at: http://works.bepress.com/ehsan_khatami/24/