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Title: Double Species Bose-Einstein Condensate with Tunable Interspecies Interactions

Abstract

We produce Bose-Einstein condensates of two different species, {sup 87}Rb and {sup 41}K, in an optical dipole trap in proximity of interspecies Feshbach resonances. We discover and characterize two Feshbach resonances, located around 35 and 79 G, by observing the three-body losses and the elastic cross section. The narrower resonance is exploited to create a double species condensate with tunable interactions. Our system opens the way to the exploration of double species Mott insulators and, more in general, of the quantum phase diagram of the two-species Bose-Hubbard model.

Authors:
; ;  [1]; ; ;  [1]
  1. LENS - European Laboratory for Non-Linear Spectroscopy and Dipartimento di Fisica, Universita di Firenze, via N. Carrara 1, I-50019 Sesto Fiorentino - Firenze (Italy)
Publication Date:
OSTI Identifier:
21132458
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 100; Journal Issue: 21; Other Information: DOI: 10.1103/PhysRevLett.100.210402; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; BOSE-EINSTEIN CONDENSATION; CROSS SECTIONS; DIPOLES; HUBBARD MODEL; PHASE DIAGRAMS; POTASSIUM 41; RESONANCE; RUBIDIUM 87; THREE-BODY PROBLEM

Citation Formats

Thalhammer, G, Barontini, G, De Sarlo, L, Catani, J, Minardi, F, Inguscio, M, CNR-INFM, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze, and INFN, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze. Double Species Bose-Einstein Condensate with Tunable Interspecies Interactions. United States: N. p., 2008. Web. doi:10.1103/PHYSREVLETT.100.210402.
Thalhammer, G, Barontini, G, De Sarlo, L, Catani, J, Minardi, F, Inguscio, M, CNR-INFM, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze, & INFN, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze. Double Species Bose-Einstein Condensate with Tunable Interspecies Interactions. United States. https://doi.org/10.1103/PHYSREVLETT.100.210402
Thalhammer, G, Barontini, G, De Sarlo, L, Catani, J, Minardi, F, Inguscio, M, CNR-INFM, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze, and INFN, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze. 2008. "Double Species Bose-Einstein Condensate with Tunable Interspecies Interactions". United States. https://doi.org/10.1103/PHYSREVLETT.100.210402.
@article{osti_21132458,
title = {Double Species Bose-Einstein Condensate with Tunable Interspecies Interactions},
author = {Thalhammer, G and Barontini, G and De Sarlo, L and Catani, J and Minardi, F and Inguscio, M and CNR-INFM, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze and INFN, via G. Sansone 1, I-50019 Sesto Fiorentino - Firenze},
abstractNote = {We produce Bose-Einstein condensates of two different species, {sup 87}Rb and {sup 41}K, in an optical dipole trap in proximity of interspecies Feshbach resonances. We discover and characterize two Feshbach resonances, located around 35 and 79 G, by observing the three-body losses and the elastic cross section. The narrower resonance is exploited to create a double species condensate with tunable interactions. Our system opens the way to the exploration of double species Mott insulators and, more in general, of the quantum phase diagram of the two-species Bose-Hubbard model.},
doi = {10.1103/PHYSREVLETT.100.210402},
url = {https://www.osti.gov/biblio/21132458}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 21,
volume = 100,
place = {United States},
year = {Fri May 30 00:00:00 EDT 2008},
month = {Fri May 30 00:00:00 EDT 2008}
}