期刊
JOURNAL OF LOW TEMPERATURE PHYSICS
卷 180, 期 1-2, 页码 168-179出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10909-015-1283-0
关键词
Fermi gases; Zero-range interaction; Unitary limit
资金
- Brazilian agency CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior) [11540/13-3]
- FAPESP [2010/10072-0]
- National Science Foundation [PHY-1404405]
- [CAPES-PVE-087/2012]
An ultracold Fermi gas with a zero-range attractive potential in the unitary limit is investigated using variational and diffusion Monte Carlo methods. Previous calculations have used a finite-range interaction and extrapolate the results to zero-range. Here we extend the quantum Monte Carlo method to directly use a zero-range interaction without the need of an extrapolation. We employ a trial wave function with the correct boundary conditions and modify the sampling procedures to handle the zero-range interaction. The results are reliable and have low variance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据