Mixtures of strongly interacting bosons in optical lattices

Year: 2008

Authors: Buonsante P., Giampaolo S.M., Illuminati F., Penna V., Vezzani A.

Autors Affiliation: C.N.I.S.M. and Dipartimento di Fisica, Politecnico di Torino, C.so Duca degli Abruzzi 24, I-10129 Torino, Italy; Dipartimento di Matematica e Informatica, Universitą degli Studi di Salerno, Via Ponte don Melillo, 84084 Fisciano (SA), Italy; CNR-INFM Coherentia, Napoli, Italy, and CNISM Unitą di Salerno, and INFN Sezione di Napoli, Gruppo collegato di Salerno, Baronissi (SA), Italy; Institute for Scientific Interchange, Viale Settimio Severo 65, 10133 Torino, Italy; CNR-INFM and Dipartimento di Fisica, Universitą degli Studi di Parma, V.le G.P. Usberti n.7/A, I-43100 Parma, Italy

Abstract: We investigate the properties of strongly interacting heteronuclear boson-boson mixtures loaded in realistic optical lattices, with particular emphasis on the physics of interfaces. In particular, we numerically reproduce the recent experimental observation that the addition of a small fraction of K-41 induces a significant loss of coherence in Rb-87, providing a simple explanation. We then investigate the robustness against the inhomogeneity typical of realistic experimental realizations of the glassy quantum emulsions recently predicted to occur in strongly interacting boson-boson mixtures on ideal homogeneous lattices.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 100 (24)      Pages from: 240402  to: 240402

KeyWords: ultracold atoms; optical lattices; mixtures
DOI: 10.1103/PhysRevLett.100.240402

Citations: 51
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2025-03-30
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here