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APS » Journals » Phys. Rev. B » Volume 50 » Issue 6
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Phys. Rev. B 50, 4248–4251 (1994)

Effective mass of one 4He atom in liquid 3He

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F. Arias de Saavedra
Departamento de Física Moderna, Universidad de Granada, E-18071 Granada, Spain

J. Boronat
Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Campus Nord B4-B5, E-08028 Barcelona, Spain

A. Polls
Departament d’Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Spain

A. Fabrocini
Department of Physics, University of Pisa, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, I-56100 Pisa, Italy

A microscopic calculation of the effective mass of one 4He impurity in homogeneous liquid 3He at zero temperature is performed for an extended Jastrow-Slater wave function, including two- and three-body dynamical correlations and also backflow correlations between the 4He atom and the particles in the medium. The effective mass at equilibrium density, m〈main〉4*/m4=1.21, is in very good agreement with the recent experimental determination by Edwards et al. The three-particle correlations appear to give a small contribution to the effective mass and different approximations for the three-particle distribution function give almost identical results for m4*/m4.

© 1994 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.50.4248
DOI:
10.1103/PhysRevB.50.4248
PACS:
67.55.Lf, 67.60.-g
 
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