Collective Modes of Trapped Interacting Bosons
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Gnanapragasam, Gnanasangeetha; Das, Mukunda P
Description
The derivation for collective modes of an interacting Bose gas trapped by an isotropic harmonic oscillator potential is presented using field-theoretic method. The presence of the two-body scattering term beyond the mean-field is seen to appear inevitably in the calculations, even in the simplest approximation. As a result we see the occurrence of a small number of non-condensate atoms in the ground state density fluctuations.
dc.contributor.author | Gnanapragasam, Gnanasangeetha | |
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dc.contributor.author | Das, Mukunda P | |
dc.date.accessioned | 2015-12-07T22:21:43Z | |
dc.identifier.issn | 0217-9792 | |
dc.identifier.uri | http://hdl.handle.net/1885/20166 | |
dc.description.abstract | The derivation for collective modes of an interacting Bose gas trapped by an isotropic harmonic oscillator potential is presented using field-theoretic method. The presence of the two-body scattering term beyond the mean-field is seen to appear inevitably in the calculations, even in the simplest approximation. As a result we see the occurrence of a small number of non-condensate atoms in the ground state density fluctuations. | |
dc.publisher | World Scientific Publishing Company | |
dc.source | International Journal of Modern Physics B | |
dc.subject | Keywords: Collective modes; Harmonically confined; Interacting Bose gas | |
dc.title | Collective Modes of Trapped Interacting Bosons | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 22 | |
dc.date.issued | 2008 | |
local.identifier.absfor | 020201 - Atomic and Molecular Physics | |
local.identifier.ariespublication | u4348025xPUB11 | |
local.type.status | Published Version | |
local.contributor.affiliation | Gnanapragasam, Gnanasangeetha, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Das, Mukunda P, College of Physical and Mathematical Sciences, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 25 | |
local.bibliographicCitation.startpage | 4349 | |
local.bibliographicCitation.lastpage | 4357 | |
local.identifier.doi | 10.1142/S0217979208050103 | |
dc.date.updated | 2016-02-24T11:05:03Z | |
local.identifier.scopusID | 2-s2.0-55949104115 | |
local.identifier.thomsonID | 000260804900008 | |
Collections | ANU Research Publications |
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