Superfluid Transitions in Bosonic Atom-Molecule Mixtures near a Feshbach Resonance
Abstract
We study bosonic atoms near a Feshbach resonance and predict that, in addition to standard normal and atomic superfluid phases, this system generically exhibits a distinct phase of matter: a molecular superfluid, where molecules are superfluid while atoms are not. We explore zero- and finite-temperature properties of the molecular superfluid (a bosonic, strong-coupling analog of a BCS superconductor), and study quantum and classical phase transitions between the normal, molecular superfluid, and atomic superfluid states.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2004
- DOI:
- 10.1103/PhysRevLett.92.160402
- arXiv:
- arXiv:cond-mat/0312237
- Bibcode:
- 2004PhRvL..92p0402R
- Keywords:
-
- 03.75.Kk;
- 05.30.Jp;
- Dynamic properties of condensates;
- collective and hydrodynamic excitations superfluid flow;
- Boson systems;
- Condensed Matter - Superconductivity;
- Condensed Matter - Statistical Mechanics
- E-Print:
- 4 revtex pages, 3 eps figures