A density functional for liquid3He

We present a density functional for the description of liquid3He properties at zero temperature in a mean field approximation. Its basic ingredients are a zero-range, particle- and spin-density dependent effective interaction of Skyrme type, and a long-range effective interaction of Lennard-Jones ty...

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Autores principales: Barranco, M., Jezek, D.M., Hernández, E.S., Navarro, J., Serra, Ll.
Formato: JOUR
Materias:
36.40.+d
64.60.-i
67.55.Cs
67.57.Bc
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01787683_v28_n3_p257_Barranco
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01787683_v28_n3_p257_Barranco
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spelling todo:paper_01787683_v28_n3_p257_Barranco2023-10-03T15:08:20Z A density functional for liquid3He Barranco, M. Jezek, D.M. Hernández, E.S. Navarro, J. Serra, Ll. 36.40.+d 64.60.-i 67.55.Cs 67.57.Bc We present a density functional for the description of liquid3He properties at zero temperature in a mean field approximation. Its basic ingredients are a zero-range, particle- and spin-density dependent effective interaction of Skyrme type, and a long-range effective interaction of Lennard-Jones type supplemented with a weighted density approximation similar to the one used in the study of classical fluids, to phenomenologically account for short range correlations. After fixing the value of its parameters, the functional yields a good description of the equation of state and Landau parameters (spin symmetric and spin antisymmetric as well) from saturation to solidification densities. The zero sound propagation at finite momentum transfer is quantitatively reproduced up to the Fermi momentum, and qualitatively above it. The surface tension is in agreement with experiment, which makes the functional well suited for3He drop calculations. We describe the structure of drops made of up to 516 atoms. As a novel application, we discuss the possible appearance of triplet pairing in a nl-shell of a drop, applying the formalism to the 1 j-shell holding up to 30 atoms from N=169 to 198. © 1993 Springer-Verlag. Fil:Jezek, D.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hernández, E.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01787683_v28_n3_p257_Barranco
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 36.40.+d
64.60.-i
67.55.Cs
67.57.Bc
spellingShingle 36.40.+d
64.60.-i
67.55.Cs
67.57.Bc
Barranco, M.
Jezek, D.M.
Hernández, E.S.
Navarro, J.
Serra, Ll.
A density functional for liquid3He
topic_facet 36.40.+d
64.60.-i
67.55.Cs
67.57.Bc
description We present a density functional for the description of liquid3He properties at zero temperature in a mean field approximation. Its basic ingredients are a zero-range, particle- and spin-density dependent effective interaction of Skyrme type, and a long-range effective interaction of Lennard-Jones type supplemented with a weighted density approximation similar to the one used in the study of classical fluids, to phenomenologically account for short range correlations. After fixing the value of its parameters, the functional yields a good description of the equation of state and Landau parameters (spin symmetric and spin antisymmetric as well) from saturation to solidification densities. The zero sound propagation at finite momentum transfer is quantitatively reproduced up to the Fermi momentum, and qualitatively above it. The surface tension is in agreement with experiment, which makes the functional well suited for3He drop calculations. We describe the structure of drops made of up to 516 atoms. As a novel application, we discuss the possible appearance of triplet pairing in a nl-shell of a drop, applying the formalism to the 1 j-shell holding up to 30 atoms from N=169 to 198. © 1993 Springer-Verlag.
format JOUR
author Barranco, M.
Jezek, D.M.
Hernández, E.S.
Navarro, J.
Serra, Ll.
author_facet Barranco, M.
Jezek, D.M.
Hernández, E.S.
Navarro, J.
Serra, Ll.
author_sort Barranco, M.
title A density functional for liquid3He
title_short A density functional for liquid3He
title_full A density functional for liquid3He
title_fullStr A density functional for liquid3He
title_full_unstemmed A density functional for liquid3He
title_sort density functional for liquid3he
url http://hdl.handle.net/20.500.12110/paper_01787683_v28_n3_p257_Barranco
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AT serrall adensityfunctionalforliquid3he
AT barrancom densityfunctionalforliquid3he
AT jezekdm densityfunctionalforliquid3he
AT hernandezes densityfunctionalforliquid3he
AT navarroj densityfunctionalforliquid3he
AT serrall densityfunctionalforliquid3he
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