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http://hdl.handle.net/2445/9735
Title: | Boson-boson mixtures and triplet correlations |
Author: | Fabrocini, A. Polls Martí, Artur |
Keywords: | Matèria condensada Estadística quàntica Bosons Condensed matter Statistique quantique Bosons |
Issue Date: | 1984 |
Publisher: | The American Physical Society |
Abstract: | The hypernetted-chain formalism for boson-boson mixtures described by an extended Jastrow correlated wave function is derived, taking into account elementary diagrams and triplet correlations. The energy of an ideal boson 3He-4He mixture is computed for low values of the 3He concentration. The zero-3He-concentration limit provides a 3He chemical potential in good agreement with the experimental value, when a McMillan two-body correlation factor and the Lennard-Jones potential are adopted. If the Euler equations for the two-body correlation factors are solved in presence of triplet correlations, the agreement is again improved. At the experimental 4He equilibrium density, the 3He chemical potential turns out to be -2.58 K, to be compared with the experimental value, -2.79 K. |
Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.30.1200 |
It is part of: | Physical Review B, 1984, vol. 30, núm. 3, p. 1200-1204. |
URI: | http://hdl.handle.net/2445/9735 |
Related resource: | http://dx.doi.org/10.1103/PhysRevB.30.1200 |
ISSN: | 0163-1829 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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