Orbital Feshbach Resonance: A "Wide" Narrow Resonance for Higher Transition Temperature Fermi Superfluid
arXiv:1602.06513 · doi:10.1103/PhysRevA.94.033609
Abstract
In this letter we show that the recently theoretically predicted and experimentally observed "orbital Feshbach resonance" in alkali-earth-like Yb-173 atom is a narrow resonance in energy, while it is hundreds Gauss wide in term of magnetic field strength, taking the advantage that the magnetic moment difference between the open and closed channels is quite small. Therefore this is an ideal platform for the experimental realization of a strongly interacting Fermi superfluid with narrow resonance. We show that the transition temperature for the Fermi superfluid in this system, especially at the BCS side of the resonance, is even higher than that in a wide resonance, which is also due to the narrow character of this resonance. Our results will encourage experimental efforts to realize Fermi superfluid in the alkali-earth-like Yb-173 system, the properties of which will be complementary to extensively studied Fermi superfluids nearby a wide resonance in alkali K-40 and Li-6 systems.
10 pages, 5 figures
References in corpus (26)
- Many-Body Physics with Ultracold Gases
- Feshbach Resonances in Ultracold Gases
- Theory of ultracold Fermi gases
- Universality in Few-body Systems with Large Scattering Length
- Production of cold molecules via magnetically tunable Feshbach resonances
- Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
- The BCS-BEC Crossover in a Gas of Fermi Atoms with a Feshbach Resonance
- Resonantly-paired fermionic superfluids
- Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism
- Observation of an orbital interaction-induced Feshbach resonance in 173-Yb
- A strongly interacting gas of two-electron fermions at an orbital Feshbach resonance
- Orbital Feshbach Resonance in Alkali-Earth Atoms
- Hydrodynamic Expansion of a Strongly Interacting Fermi-Fermi Mixture
- Realization of a Resonant Fermi Gas with a Large Effective Range
- A self-consistent theory of atomic Fermi gases with a Feshbach resonance at the superfluid transition
- Conventional character of the BCS-BEC cross-over in ultra-cold gases of 40K
- Universality in Phase Transitions for Ultracold Fermionic Atoms
- Multi-channel scattering and Feshbach resonances: Effective theory, phenomenology, and many-body effects
- Alternative Route to Strong Interaction: Narrow Feshbach Resonance
- BCS-BEC crossover of collective excitations in two-band superfluids
- Two-band superfluidity from the BCS to the BEC limit
- Effective-range approximations for resonant scattering of cold atoms
- Two-band description of resonant superfluidity in atomic Fermi gases
- Dressed-molecules in resonantly-interacting ultracold atomic Fermi gases
- Fermionic superfluidity with positive scattering length
- Orbital Feshbach Resonance with Small Energy Gap between Open and Closed Channels
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- Strongly correlated Fermi superfluid near an orbital Feshbach resonance: Stability, equation of state and Leggett mode
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- Topological Fulde-Ferrell states in alkaline-earth-metal-like atoms near an orbital Feshbach resonance
- Quantum Defect Theory for Orbital Feshbach Resonance
- Single-particle Excitations and Strong Coupling Effects in the BCS-BEC Crossover Regime of a Rare-Earth Fermi Gas with an Orbital Feshbach Resonance
- Pairs, trimers and BCS-BEC crossover near a flat band: the sawtooth lattice
- Tuning Feshbach resonance in cold atomic gases with inter-channel coupling
- Dynamic structure factors of a strongly interacting Fermi superfluid near an orbital Feshbach resonance across the phase transition from BCS to Sarma superfluid
- Diversified vortex phase diagram for a rotating trapped two-band Fermi gas in the BCS-BEC crossover
- Frustrated orbital Feshbach resonances in a Fermi gas
- Polaronic and dressed molecular states in orbital Feshbach resonances
- Closed-channel contribution in the BCS-BEC crossover regime of an ultracold Fermi gas with an orbital Feshbach resonance
- Enhanced Fulde-Ferrell-Larkin-Ovchinnikov and Sarma superfluid states near an orbital Feshbach resonance
- Superfluid properties of an ultracold Fermi gas with an orbital Feshbach resonance in the BCS-BEC crossover region
- Two-band atomic superfluidity in the presence of an orbital Feshbach resonance