Ultracold three-body collisions near narrow Feshbach resonances

Journal Article · Fri Apr 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.042710· OSTI ID:21544636

Yujun, Wang; Esry, B D ^[1]; D'Incao, J P ^[2]

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1. Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States)
2. JILA, University of Colorado, and NIST, Boulder, Colorado 80309-0440 (United States)

We study ultracold three-body collisions of bosons and fermions when the interatomic interaction is tuned near a narrow Feshbach resonance. We show that the width of the resonance has a substantial impact on the collisional properties of ultracold gases in the strongly interacting regime. From our numerical and analytical analyses, we identify universal features dependent on the resonance width. Remarkably, we find that all inelastic processes near narrow resonances leading to deeply bound states in bosonic systems are suppressed, while those for fermionic systems are enhanced. As a result, narrow resonances present a scenario that is the reverse of that found for broad resonances, opening up the possibility of creating stable samples of ultracold bosonic gases with large scattering lengths.

• OSTI ID: 21544636
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
BASIC INTERACTIONS
BOSONS
BOUND STATE
COLLISIONS
DIMENSIONS
FERMIONS
FLUIDS
GASES
INTERACTIONS
LENGTH
LEVEL WIDTHS
MANY-BODY PROBLEM
RESONANCE
SCATTERING LENGTHS
STRONG INTERACTIONS
THREE-BODY PROBLEM