Coherent molecular bound states of bosons and fermions near a Feshbach resonance

2004/04/30 by P. D. Drummond, K. V. Kheruntsyan · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat.other #cond-mat.stat-mech

paper · pdf · doi:10.1103/physreva.70.033609

published as Phys. Rev. A 70, 033609 (2004) · Minor changes -- to match the final published version

openalex publication_date 2004/09/22 · arxiv created 2004/09/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We analyze molecular bound states of atomic quantum gases near a Feshbach resonance. A simple, renormalizable field theoretic model is shown to have exact solutions in the two-body sector, whose binding energy agrees well with observed experimental results in both Bosonic and Fermionic cases. These solutions, which interpolate between BEC and BCS theories, also provide a more general variational ansatz for resonant superfluidity and related problems.

Citations

• Modern Quantum Mechanics
• Multimode Dynamics of a Coupled Ultracold Atomic-Molecular System
• Prospect of creating a composite Fermi–Bose superfluid
• Observation of resonance condensation of fermionic atom pairs
• Collective Excitations of a Degenerate Gas at the BEC-BCS Crossover
• Weakly Bound Dimers of Fermionic Atoms
• Resonance superfluidity: Renormalization of resonance scattering theory
• Observation of Bose-Einstein Condensation of Molecules
• Resonance Superfluidity in a Quantum Degenerate Fermi Gas
• Modern quantum mechanics

Cited by

• Quantum lattice solitons in ultracold bosons near the Feshbach resonance