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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


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]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: International Journal of Modern Physics B


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