Phys. Rev. A 58, 3134–3137 (1998)Bose-Einstein condensation in a two-dimensional, trapped, interacting gasReceived 1 April 1998; published in the issue dated October 1998 We study the Bose-Einstein condensation phenomenon in a two-dimensional (2D) system of bosons subjected to a harmonic-oscillator-type confining potential. The interaction among the 2D bosons is described by a δ function in configuration space. Solving the Gross-Pitaevskii equation within the two-fluid model we calculate the condensate fraction, ground-state energy, and specific heat of the system. Our results indicate that interacting bosons have similar behavior to those of an ideal system for weak interactions. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.58.3134
DOI:
10.1103/PhysRevA.58.3134
PACS:
03.75.Fi, 05.30.Jp, 67.40.Kh
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