Dip-hump temperature dependence of Specific Heat and Effects of Pairing Fluctuations in the Weak-coupling Side of a $p$-wave Interacting Fermi Gas

Abstract

We investigate the specific heat $C_V$ at constant volume in the normal state of a $p$-wave interacting Fermi gas. Including $p$-wave pairing fluctuations within the strong-coupling theory developed by Nozières and Schmitt-Rink, we show that, in the weak-coupling side, $C_V$ exhibits a dip-hump behavior as a function of the temperature. While the dip is associated with the pseudogap phenomenon near $T_{\mathrm{c}}$, the hump structure is found to come from the suppression of Fermi quasiparticle scattering into a $p$-wave molecular state in the Fermi degenerate regime. Since the latter phenomenon does not occur in the ordinary $s$-wave interacting Fermi gas, it may be viewed as a characteristic phenomenon associated with a $p$-wave pairing interaction.

arXiv comment5 pages, 6 figures

References in corpus (35)

• Feshbach Resonances in Ultracold Gases
• Creation of ultracold molecules from a Fermi gas of atoms
• BCS-BEC Crossover: From High Temperature Superconductors to Ultracold Superfluids
• Revealing the Superfluid Lambda Transition in the Universal Thermodynamics of a Unitary Fermi Gas
• Resonantly-paired fermionic superfluids
• Tuning p-wave interactions in an ultracold Fermi gas of atoms
• 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
• Anisotropic Fermi Superfluid via p-wave Feshbach Resonance
• Collisional Properties of p-Wave Feshbach Molecules
• 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
• 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
• Specific heat and effects of pairing fluctuations in the BCS-BEC crossover regime of an ultracold Fermi gas
• Pairing Symmetry in the Anisotropic Fermi Superfluid under p-wave Feshbach Resonance
• Trapped p-wave superfluids: a local density approach
• Superfluid properties of one-component Fermi gas with an anisotropic p-wave interaction

Cited by in corpus (3)

• Strong-Coupling and Finite Temperature Effects on $p$-wave Contacts
• Studies of Single Component Fermi Gas near a $P$-wave Resonance with Lowest Order Constrained Variational Method
• Strong-coupling Properties of a $p$-wave Interacting Fermi Gas on the Viewpoint of Specific Heat at Constant Volume