Phase slip in a superfluid Fermi gas near a Feshbach resonance
Lan Yin, Ping Ao
Abstract
In this paper, we study the properties of a phase slip in a superfluid Fermi gas near a Feshbach resonance. The phase slip can be generated by the phase imprinting method. Below the superfluid transition temperature, it appears as a dip in the density profile, and becomes more pronounced when the temperature is lowered. Therefore the phase slip can provide a direct evidence of the superfluid state. The condensation energy of the superfluid state can be extracted from the density profile of the phase slip, due to the unitary properties of the Fermi gas near the resonance. The width of the phase slip is proportional to the square root of the difference between the transition temperature and the temperature. The signature of the phase slip in the density profile becomes more robust across the BCS-BEC crossover.
Create a lesson
Related papers
Momentum conservation for ab initio calculations with pseudopotentials via a phase space electronic structure formulation
Guy Ohad, Nadine C. Bradbury, Joseph E. Subotnik
Optically driven ultrafast lattice contraction in a topological crystalline insulator
M. H. Berntsen, W. Chen, D. Phuyal et al.
Deterministic positioning accuracy of B centers in hBN by electron irradiation
A. Núñez Marcos, C. Arnold, J. Barjon et al.
Coexistence of Multiple Distinct Corner-State Classes via Nearest-Neighbor Couplings Alone
Luhong Su, Dongyi Wang, Shenglong Guo et al.
Non-Hermitian Two-Kink Control of Corner States in Twisted Chern Bilayers
Xiao-Ming Zhao, Su-Peng Kou
Revealing New Leakage Paths in GAAFETs using Predictive First-Principles Simulations
Denis Mamaluy, Juan P. Mendez, Coleman Cariker et al.