Studies of a single component Fermi gas near a p-wave resonance with the lowest order constrained variational method

¹ Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong Hong Kong, China
² Department of Physics, College of Physics and Electronic Engineering, Guangzhou University Guangzhou 510006, China

Received: 27 February 2018
Accepted: 5 June 2018

Abstract

We study a single component Fermi gas near a p-wave resonance with the lowest order constrained variational (LOCV) method. We obtain the energy per particle for the ground state of the single component Fermi gas near a p-wave resonance with the LOCV method. We also calculate the compressibility of the single component Fermi gas near a p-wave resonance and it shows that in the strongly interacting BCS side, the system would lose its stability and collapse. The width of the unstable region is proportional to the Fermi energy which reflects the universality of the dilute Fermi gas. The two p-wave contacts are also obtained and their variation tendencies with the interaction strength are qualitatively in agreement with recent experimental results.