Second-order virial expansion for an atomic gas in a harmonic waveguide

Autor: Kristensen, Tom, Leyronas, Xavier, Pricoupenko, Ludovic
Rok vydání: 2016
Předmět:
Zdroj: Phys. Rev. A 93, 063636 (2016)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevA.93.063636
Popis: The virial expansion for cold two-component Fermi and Bose atomic gases is considered in the presence of a waveguide and in the vicinity of a Feshbach resonance. The interaction between atoms and the coupling with the Feshbach molecules is modeled using a quantitative separable two-channel model. The scattering phase-shift in an atomic waveguide is defined. This permits us to extend the Beth-Uhlenbeck formula for the second-order virial coefficient to this inhomogeneous case.
Databáze: arXiv