Using modified Gaussian distributions to study the physical properties of one and twocomponent ultracold atoms
Abstract
Gaussian distribution is commonly used as a good approximation to study the trapped onecomponent Bosecondensed atoms with relatively small nonlinear effect. It is not adequate in dealing with the onecomponent system of large nonlinear effect, nor the twocomponent system where phase separation exists. We propose a modified Gaussian distribution which is more effective when dealing with the onecomponent system with relatively large nonlinear terms as well as the twocomponent system. The modified Gaussian is also used to study the breathing modes of the twocomponent system, which shows a drastic change in the mode dispersion at the occurrence of the phase separation. The results obtained are in agreement with other numerical results.
 Authors:
 Department of Physics, National Taiwan Normal University, Taipei 11650, Taiwan (China)
 Publication Date:
 OSTI Identifier:
 20982160
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.023609; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; APPROXIMATIONS; ATOMS; BOSEEINSTEIN CONDENSATION; GAUSS FUNCTION; NONLINEAR PROBLEMS; PHYSICAL PROPERTIES; TRAPPING
Citation Formats
Huang, ChouChun, and Wu, WenChin. Using modified Gaussian distributions to study the physical properties of one and twocomponent ultracold atoms. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVA.75.023609.
Huang, ChouChun, & Wu, WenChin. Using modified Gaussian distributions to study the physical properties of one and twocomponent ultracold atoms. United States. doi:10.1103/PHYSREVA.75.023609.
Huang, ChouChun, and Wu, WenChin. Thu .
"Using modified Gaussian distributions to study the physical properties of one and twocomponent ultracold atoms". United States.
doi:10.1103/PHYSREVA.75.023609.
@article{osti_20982160,
title = {Using modified Gaussian distributions to study the physical properties of one and twocomponent ultracold atoms},
author = {Huang, ChouChun and Wu, WenChin},
abstractNote = {Gaussian distribution is commonly used as a good approximation to study the trapped onecomponent Bosecondensed atoms with relatively small nonlinear effect. It is not adequate in dealing with the onecomponent system of large nonlinear effect, nor the twocomponent system where phase separation exists. We propose a modified Gaussian distribution which is more effective when dealing with the onecomponent system with relatively large nonlinear terms as well as the twocomponent system. The modified Gaussian is also used to study the breathing modes of the twocomponent system, which shows a drastic change in the mode dispersion at the occurrence of the phase separation. The results obtained are in agreement with other numerical results.},
doi = {10.1103/PHYSREVA.75.023609},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}

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