Prospect of creating a composite Fermi–Bose superfluid

2001/03/15 by Eddy Timmermans, Kyoko Furuya, Peter W. Milonni +2 · 20 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat.supr-con

paper · pdf · doi:10.1016/s0375-9601(01)00346-2

Rejected by PRL

arxiv created 2001/03/15 · openalex publication_date 2001/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that composite fermi/bose superfluids can be created in cold-atom traps by employing a Feshbach resonance or coherent photoassociation. The bosonic molecular condensate created in this way implies a new fermion pairing mechanism associated with the exchange of fermion pairs between the molecular condensate and an atomic fermion superfluid. We predict macroscopically coherent, Josephson-like oscillations of the atomic and molecular populations in response to a sudden change of the molecular energy, and suggest that these oscillations will provide an experimental signature of the pairing.

Citations

• Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor

Cited by

• Boson-fermion resonance model in one dimension
• BCS-BEC crossover with a finite-range interaction
• Bloch oscillations in Fermi gases
• COOPER PAIRS AS BOSONS
• Universal properties of the ultracold Fermi gas
• Coherent molecular bound states of bosons and fermions near a Feshbach resonance
• Dynamics of the BCS-BEC Crossover in a Degenerate Fermi Gas
• Quantum Decoupling Transition in a One-Dimensional Feshbach-Resonant Superfluid
• Finite temperature effects in light scattering off Cooper-paired Fermi atoms
• Emergence of a molecular Bose–Einstein condensate from a Fermi gas
• Bose-Einstein Condensation of Molecules
• Phase Conjugation of a Quantum-Degenerate Atomic Fermion Beam
• Strongly interacting fermions in an optical lattice
• Spontaneous vortex production in driven condensates with narrow Feshbach resonances
• Phase transitions in the boson-fermion resonance model in one dimension
• Thermal equilibrium and efficient evaporation of an ultracold atom-molecule mixture
• Superfluid density of states and pseudogap phenomenon in the BCS-BEC crossover regime of a superfluid Fermi gas
• Dimer-dimer collisions at finite energies in two-component Fermi gases
• The BCS–Bose crossover theory
• Nonzero orbital angular momentum superfluidity in ultracold Fermi gases