Pairing and condensation in a resonant Bose-Fermi mixture

Journal Article · Sat May 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.051605· OSTI ID:21408762

Fratini, Elisa; Pieri, Pierbiagio ^[1]

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1. Sezione di Fisica, Scuola di Scienze e Tecnologie, Universita di Camerino and CNISM, Via Madonna delle Carceri 9, I-62032 Camerino (Italy)

We study by diagrammatic means a Bose-Fermi mixture, with boson-fermion coupling tuned by a Fano-Feshbach resonance. For increasing coupling, the growing boson-fermion pairing correlations progressively reduce the boson condensation temperature and make it eventually vanish at a critical coupling. Such quantum critical point depends very weakly on the population imbalance and, for vanishing boson densities, coincides with that found for the polaron-molecule transition in a strongly imbalanced Fermi gas, thus bridging two quite distinct physical systems.

• OSTI ID: 21408762
• Journal Information: Physical Review. A, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevA.81.051605; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSONS
CORRELATIONS
COUPLING
DENSITY
FERMI GAS
FERMIONS
MOLECULES
RESONANCE
PHYSICAL PROPERTIES