Published December 2009
| Version v1
Journal article
Self-trapping of a Fermi superfluid in a double-well potential in the Bose-Einstein-condensate-unitarity crossover
Creators
- 1. Instituto de Fisica Teorica, Sao Paulo State University (UNESP), 01.140-070 Sao Paulo, SP (Brazil)
- 2. Department of Physics and Astronomy, and Rice Quantum Institute, Rice University, Houston, Texas 77251 (United States)
Description
We derive a generalized Gross-Pitaevskii density-functional equation appropriate to study the Bose-Einstein condensate (BEC) of dimers formed of singlet spin-half Fermi pairs in the BEC-unitarity crossover while the dimer-dimer scattering length a changes from 0 to ∞. Using an effective one-dimensional form of this equation, we study the phenomenon of dynamical self-trapping of a cigar-shaped Fermi superfluid in the entire BEC-unitarity crossover in a double-well potential. A simple two-mode model is constructed to provide analytical insights. We also discuss the consequence of our study on the self-trapping of an atomic BEC in a double-well potential.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.80.063607;
- arXiv
- arXiv:0911.0815v1;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 80
- Journal Issue
- 6
- Journal Page Range
- p. 063607-063607.10
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41086535
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- BOSE-EINSTEIN CONDENSATION; DENSITY FUNCTIONAL METHOD; DIMERS; EQUATIONS; FERMIONS; ONE-DIMENSIONAL CALCULATIONS; POTENTIALS; SCATTERING LENGTHS; SPIN; SUPERFLUIDITY; TRAPPING; UNITARITY
- Descriptors DEC
- ANGULAR MOMENTUM; CALCULATION METHODS; DIMENSIONS; LENGTH; PARTICLE PROPERTIES; VARIATIONAL METHODS
Optional Information
- Notes
- (c) 2009 The American Physical Society