Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/9585
Title: Ground-state properties of a dilute homogeneous Bose gas of hard disks in two dimensions
Author: Mazzanti, F.
Polls Martí, Artur
Fabrocini, A.
Keywords: Matèria condensada
Estadística quàntica
Gas de Bose-Einstein
Condensed matter
Quantum statistics
Bose-Einstein gas
Issue Date: 2005
Publisher: The American Physical Society
Abstract: The energy and structure of a dilute hard-disks Bose gas are studied in the framework of a variational many-body approach based on a Jastrow correlated ground-state wave function. The asymptotic behaviors of the radial distribution function and the one-body density matrix are analyzed after solving the Euler equation obtained by a free minimization of the hypernetted chain energy functional. Our results show important deviations from those of the available low density expansions, already at gas parameter values x~0.001 . The condensate fraction in 2D is also computed and found generally lower than the 3D one at the same x.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.71.033615
It is part of: Physical Review A, 2005, vol. 71, núm. 3, p. 033615.
URI: http://hdl.handle.net/2445/9585
ISSN: 1050-2947
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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