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Mapping the two-component atomic Fermi gas to the nuclear shell-model

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Mapping the two-component atomic Fermi gas to the nuclear shell-model.pdf (382.8Kb)
Date
2014
Author
Özen, Cem
Zinner, Nikolaj Thomas
Abstract
The physics of a two-component cold Fermi gas is now frequently addressed in laboratories. Usually this is done for large samples of tens to hundreds of thousands of particles. However it is now possible to produce few-body systems (1-100 particles) in very tight traps where the shell structure of the external potential becomes important. A system of two-species fermionic cold atoms with an attractive zero-range interaction is analogous to a simple model of nucleus in which neutrons and protons interact only through a residual pairing interaction. In this article we discuss how the problem of a two-component atomic Fermi gas in a tight external trap can be mapped to the nuclear shell-model so that readily available many-body techniques in nuclear physics such as the Shell-Model Monte Carlo (SMMC) method can be directly applied to the study of these systems. We demonstrate an application of the SMMC method by estimating the pairing correlations in a small two-component Fermi system with moderate-to-strong short-range two-body interactions in a three-dimensional harmonic external trapping potential.

Source

The European Physical Journal D

Issue

8

Volume

68

URI

https://hdl.handle.net/20.500.12469/699
https://doi.org/10.1140/epjd/e2014-40687-4

Collections

  • Araştırma Çıktıları / Scopus [1482]
  • Araştırma Çıktıları / WOS [1407]
  • Biyoinformatik ve Genetik / Bioinformatics and Genetics [210]

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