Stability of the fermionic gases close to a p-wave Feshbach resonance

Abstract

We study the stability of the paired fermionic p-wave superfluid made out of identical atoms all in the same hyperfine state close to a p-wave Feshbach resonance. First we reproduce known results concerning the lifetime of a 3D superfluid, in particular, we show that it decays at the same rate as its interaction energy, thus precluding its equilibration before it decays. Then we proceed to study its stability in case when the superfluid is confined to 2D by means of an optical harmonic potential. We find that the relative stability is somewhat improved in 2D in the BCS regime, such that the decay rate is now slower than the appropriate interaction energy scale. The improvement in stability, however, is not dramatic and one probably needs to look for other mechanisms to suppress decay to create a long lived 2D p-wave fermionic superfluid.

References in corpus (14)

• Weakly bound dimers of fermionic atoms
• Strong dissipation inhibits losses and induces correlations in cold molecular gases
• Molecular Probe of Pairing in the BEC-BCS Crossover
• Resonantly-paired fermionic superfluids
• Three-boson problem near a narrow Feshbach resonance
• p-wave Feshbach molecules
• Nonequilibrium dynamics and thermodynamics of a degenerate Fermi gas across a Feshbach resonance
• Anisotropic Fermi Superfluid via p-wave Feshbach Resonance
• Collisional Properties of p-Wave Feshbach Molecules
• Binding Energies of 6Li p-wave Feshbach Molecules
• Fermion Superfluids of Non-Zero Orbital Angular Momentum near Resonance
• Three fully polarized fermions close to a p-wave Feshbach resonance
• Strongly-resonant p-wave superfluids
• Resonant Scattering of Ultracold Atoms in Low Dimensions

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• Superfluid Fermi atomic gas as a quantum simulator for the study of neutron-star equation of state
• Proof of the Super Efimov Effect
• Confinement-induced p-wave resonances from s-wave interactions
• Two-body relaxation in a Fermi gas at a p-wave Feshbach resonance
• Structure and consequences of vortex-core states in p-wave superfluids
• The p-wave polaron
• Quantitative analysis of $p$-wave three-body losses via cascade process
• Super Efimov effect for mass-imbalanced systems
• Sigature of the universal super Efimov Effect: three-body contact in two dimensional Fermi gases
• Three-body forces and Efimov physics in nuclei and atoms
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• Multiorder topological superfluid phase transitions in a two-dimensional optical superlattice
• Dip-hump temperature dependence of Specific Heat and Effects of Pairing Fluctuations in the Weak-coupling Side of a $p$-wave Interacting Fermi Gas
• Tricritical physics in two-dimensional $p$-wave superfluids
• Strong-coupling Properties of a $p$-wave Interacting Fermi Gas on the Viewpoint of Specific Heat at Constant Volume
• Magnetoroton in a two-dimensional Bose-Bose mixture
• Three-body recombination in a single-component Fermi gas with $p$-wave interaction
• Many-body dynamics of p-wave Feshbach molecule production: a mean-field approach
• Triplet pair amplitude in a trapped $s$-wave superfluid Fermi gas with broken spin rotation symmetry. II. Three dimensional continuum case
• Radio-Frequency Spectroscopy and the Dimensional Crossover in Interacting Spin-Polarized Fermi Gases
• Window for Efimov physics for few-body systems with finite-range interactions
• Resonance-facilitated three-channel p-wave scattering
• Shear Viscosity in the Strong Interaction Regime of a p-wave Superfluid Fermi Gas
• Elastic collision rates of spin-polarized fermions in two dimensions
• Unconventional superfluidity in Bose-Fermi Mixtures
• s- and p-superfluidity of Fermi atoms in Bose-Fermi mixtures