Shear Viscosity in the Strong Interaction Regime of a p-wave Superfluid Fermi Gas

Abstract

The $p$-wave superfluid state is a promising spin-triplet and non $s$-wave pairing state in an ultracold Fermi gas. In this work we study the low-temperature shear viscosity of a one-component $p$-wave superfluid Fermi gas, by means of Kubo formalism. Our study is done in the strong-coupling limit where Fermi superfluid reduces into a system of composite bosons. Taking into account $p_x$-wave Cooper channel in the self-energy, the viscous relaxation rates are determined. The relaxation rates related to these interactions are calculated as a function of temperature. Their temperature dependence is different from the $s$-wave superfluid Fermi gas, and this is due to the anisotropic pairing interaction in the $p$-wave superfluid. Our results contribute to understand how this anisotropy affects transport properties of this unconventional superfluid Fermi gas in low temperature limit.

References in corpus (40)

• Creation of ultracold molecules from a Fermi gas of atoms
• Resonantly-paired fermionic superfluids
• Tuning p-wave interactions in an ultracold Fermi gas of atoms
• Kubo formulas for viscosity: Hall viscosity, Ward identities, and the relation with conductivity
• Quantum phase transitions across p-wave Feshbach resonance
• Multiplet Structure of Feshbach Resonances in non-zero partial waves
• P-wave Feshbach resonances of ultra-cold ${}^6$Li
• Feshbach Resonances in Fermionic Lithium-6
• p-Wave Interactions in Low-Dimensional Fermionic gases
• p-wave Feshbach molecules
• Viscosity and scale invariance in the unitary Fermi gas
• Anisotropic Fermi Superfluid via p-wave Feshbach Resonance
• Viscosity of strongly interacting quantum fluids: spectral functions and sum rules
• Collisional Properties of p-Wave Feshbach Molecules
• Shear viscosity of a superfluid Fermi gas in the unitarity limit
• Binding Energies of 6Li p-wave Feshbach Molecules
• Three fully polarized fermions close to a p-wave Feshbach resonance
• Fermion Superfluids of Non-Zero Orbital Angular Momentum near Resonance
• BCS-BEC crossover in a gas of Fermi atoms with a p-wave Feshbach resonance
• Stability of the fermionic gases close to a p-wave Feshbach resonance
• Quantum Phase Transition in the BCS-to-BEC Evolution of p-wave Fermi Gases
• Role of the Majorana Fermion and the Edge Mode in Chiral Superfluidity near a p-Wave Feshbach Resonance
• Evolution from BCS to BEC superfluidity in p-wave Fermi gases
• Strongly-resonant p-wave superfluids
• Resonant scattering properties close to a p-wave Feshbach resonance
• Experimental Determination of p-wave Scattering Parameters in ultracold 6Li atoms
• Stabilization of the p-wave superfluid state in an optical lattice
• Vortex structures and zero energy states in the BCS-to-BEC evolution of p-wave resonant Fermi gases
• Splitting and oscillation of Majorana zero modes in the p-wave BCS-BEC evolution with plural vortices
• Superfluidity of p-wave and s-wave atomic Fermi gases in optical lattices
• Shear viscosity and spin diffusion in a two-dimensional Fermi gas
• Shear viscosity and damping of collective modes in a two-dimensional Fermi gas
• Radiofrequency spectroscopy of ${}^6$Li p-wave molecules: towards photoemission spectroscopy of a p-wave superfluid
• Predicted signatures of p-wave superfluid phases and Majorana zero modes of fermionic atoms in RF absorption
• Thermodynamics and coherence of a trapped dipolar Fermi gas
• Pairing fluctuations and anisotropic pseudogap phenomenon in an ultracold superfluid Fermi gas with plural $p$-wave superfluid phases
• Shear viscosity and Strong-Coupling Corrections in the BCS-BEC crossover Regime of an Ultracold Fermi Gas
• Strong-Coupling and Finite Temperature Effects on $p$-wave Contacts
• Superfluid properties of one-component Fermi gas with an anisotropic p-wave interaction
• Impurity induced resistivity upturns in underdoped cuprates