Title:
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Ground-state properties of a dilute homogeneous Bose gas of hard disks in two dimensions
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Author:
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Mazzanti, F.; Polls Martí, Artur; Fabrocini, A.
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Matèria condensada -Estadística quàntica -Gas de Bose-Einstein -Condensed matter -Quantum statistics -Bose-Einstein gas |
Rights:
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(c) The American Physical Society, 2005
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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