Abstract

Pairing properties of a trapped fermion gas consisting of atoms with magnetic dipole moment are studied using the Hartree–Fock–Bogoliubov theory (HFB) and the results are compared with those obtained from the exact diagonalization approach (EDA). It is shown that HFB underestimates two-body correlations and gives quite different atom–atom correlations than the results in EDA. Extended time-dependent HFB (ETDHFB), which is derived from the truncation of equations of motion for reduced density matrices, is also applied and it is found that the difficulties of HFB can be remedied by ETDHFB.

Details

Title
Accuracy of pairing theory for a trapped magnetic dipole fermion gas
Author
Tohyama, Mitsuru 1 

 Kyorin University School of Medicine, Mitaka, Tokyo 181-8611, Japan 
Publication year
2016
Publication date
Feb 2016
Publisher
Oxford University Press
e-ISSN
20503911
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3171473348
Copyright
© The Author(s) 2016. Published by Oxford University Press on behalf of the Physical Society of Japan. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.