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cond-mat.stat-mech2008
First-order quantum correction to the ground-state energy density of two-dimensional hard-sphere Bose atoms
Sang-Hoon Kim, Mukunda P. Das
Divergence exponents of the first-order quantum correction of a two-dimensional hard-sphere Bose atoms are obtained by an effective field theory method. The first-order correction…
cond-mat.stat-mech2006
Ground state energy density of a dilute Bose gas in the canonical transformation
Sang-Hoon Kim, Chul Koo Kim, Mukunda P. Das
A 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 c…