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Type: Artigo de periódico
Title: Monte Carlo Calculations For Fermi Gases In The Unitary Limit With A Zero-range Interaction
Author: Pessoa R.
Vitiello S.A.
Schmidt K.E.
Abstract: 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.
Editor: Springer New York LLC
Rights: fechado
Identifier DOI: 10.1007/s10909-015-1283-0
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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