Single-particle momentum distribution of an Efimov trimer

Journal Article · Wed Jun 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.063614· OSTI ID:21550159

Castin, Yvan; Werner, Felix ^[1]

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1. Laboratoire Kastler Brossel, Ecole Normale Superieure, UPMC and CNRS, 24 rue Lhomond, F-75231 Paris Cedex 05 (France)

Experimental progress in the study of strongly interacting ultracold atoms has recently allowed the observation of Efimov trimers. We study theoretically a nonconventional observable for these trimer states, which may be accessed experimentally, the momentum distribution n(k) of the constitutive bosonic particles. The large momentum part of the distribution is particularly intriguing: In addition to the expected 1/k{sup 4} tail associated with contact interactions, it exhibits a subleading tail 1/k{sup 5} which is a hallmark of Efimov physics and leads to a breakdown of a previously proposed expression of the energy as a functional of the momentum distribution.

• OSTI ID: 21550159
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
ATOMS
BASIC INTERACTIONS
DISTRIBUTION
INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR MODELS
PARTICLES
SINGLE-PARTICLE MODEL
STRONG INTERACTIONS