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Ground-State Energy Density of a Dilute Bose Gas in the Canonical Transformation

Kim, Sang-Hoon; Kim, Chul Ku; Das, Mukunda P

Description

The ground-state energy density of an interacting dilute Bose gas system is studied in the canonical transformation scheme. It is shown that the transformation scheme enables us to calculate a higher order correction of order na3 in the particle depletion and ground-state energy density of a dilute Bose gas system, which corresponds to the density fluctuation resulting from the excited states. Considering a two-body interaction only, the coefficient of the na3 term is shown to be 2(π - 8/3) for...[Show more]

dc.contributor.authorKim, Sang-Hoon
dc.contributor.authorKim, Chul Ku
dc.contributor.authorDas, Mukunda P
dc.date.accessioned2015-12-07T22:22:42Z
dc.identifier.issn0217-9792
dc.identifier.urihttp://hdl.handle.net/1885/20349
dc.description.abstractThe ground-state energy density of an interacting dilute Bose gas system is studied in the canonical transformation scheme. It is shown that the transformation scheme enables us to calculate a higher order correction of order na3 in the particle depletion and ground-state energy density of a dilute Bose gas system, which corresponds to the density fluctuation resulting from the excited states. Considering a two-body interaction only, the coefficient of the na3 term is shown to be 2(π - 8/3) for the particle depletion, and 16(π - 8/3) for the ground-state energy density.
dc.publisherWorld Scientific Publishing Company
dc.sourceInternational Journal of Modern Physics B
dc.source.urihttp://www.worldscinet.com/cgi-bin/details.cgi?id=jsname:ijmpb&type=all
dc.subjectKeywords: Author Keywords
dc.titleGround-State Energy Density of a Dilute Bose Gas in the Canonical Transformation
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume21
dc.date.issued2007
local.identifier.absfor020404 - Electronic and Magnetic Properties of Condensed Matter; Superconductivity
local.identifier.ariespublicationu4039210xPUB12
local.type.statusPublished Version
local.contributor.affiliationKim, Sang-Hoon, Mopko National Maritime University
local.contributor.affiliationKim, Chul Ku, Yonsei University
local.contributor.affiliationDas, Mukunda P, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue32
local.bibliographicCitation.startpage5309
local.bibliographicCitation.lastpage5318
dc.date.updated2015-12-07T09:07:53Z
local.identifier.scopusID2-s2.0-38349062619
CollectionsANU Research Publications

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