A Novel Route to Reach a $p$-wave Superfluid Fermi Gas

Abstract

We theoretically propose an idea to realize a $p$-wave superfluid Fermi gas. To overcome the experimental difficulty that a $p$-wave pairing interaction to form $p$-wave Cooper pairs damages the system before the condensation growth, we first prepare a $p$-wave pair amplitude (${\Phi }_p$) in a spin-orbit coupled $s$-wave superfluid Fermi gas, without any $p$-wave interaction. Then, by suddenly changing the $s$-wave interaction with a $p$-wave one ($U_p$) by using a Feshbach resonance, we reach the $p$-wave superfluid phase with the $p$-wave order parameter being symbolically written as ${\Delta }_p\sim U_p{\Phi }_p$. In this letter, we assess this scenario within the framework of a time-dependent Bogoliubov-de Gennes theory. Our results would contribute to the study toward the realization of unconventional pairing states in an ultracold Fermi gas.

References in corpus (13)

• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• p-wave Feshbach molecules
• Collisional Properties of p-Wave Feshbach Molecules
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• Fermion Superfluids of Non-Zero Orbital Angular Momentum near Resonance
• Stability of the fermionic gases close to a p-wave Feshbach resonance
• Strongly-resonant p-wave superfluids
• Nonzero orbital angular momentum superfluidity in ultracold Fermi gases
• Higgs amplitude mode in massless Dirac fermion systems
• Proposed method to realize the $p$-wave superfluid state using a $s$-wave superfluid Fermi gas with a synthetic spin-orbit interaction
• Many-body dynamics of p-wave Feshbach molecule production: a mean-field approach

Cited by in corpus (5)

• Three-body forces and Efimov physics in nuclei and atoms
• Two-dimensional Fermi gases near a p-wave resonance: effect of quantum fluctuations
• Pairing Dynamics of Polar States in a Quenched p-wave Superfluid Fermi Gas
• Tricritical physics in two-dimensional $p$-wave superfluids
• Appropriate conditions to realize a $p$-wave superfluid state starting from a spin-orbit coupled $s$-wave superfluid Fermi gas