Published January 1, 2017 | Version v1
Journal article Open

Effect of weak disorder on the BCS-BEC crossover in a two-dimensional Fermi gas

  • 1. Bennett Univ, Dept Phys, Sch Engn & Appl Sci, Greater Noida 201310, India
  • 2. Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey

Description

In this paper, we study the two-dimensional (2D) ultracold Fermi gas with weak impurity in the framework of mean-field theory where the impurity is introduced through Gaussian fluctuations. We have investigated the role of the impurity by studying the experimentally accessible quantities such as condensate fraction and equation of state of the ultracold systems. Our analysis reveals that at the crossover, the disorder enhances superfluidity, which we attribute to the unique nature of the unitary region and to the dimensional effect.

Files

bib-cc26ffa9-c8da-4fc1-8dbc-c708c05c99ff.txt

Files (161 Bytes)

Name Size Download all
md5:8b5f0f28cc3fa0b173758d0e7e12bd49
161 Bytes Preview Download