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: Jezek, Dora Marta, Hernández, Ester Susana
Publicado: 1993
Materias:
36.40.+d
64.60.-i
67.55.Cs
67.57.Bc
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01787683_v28_n3_p257_Barranco
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 paper:paper_01787683_v28_n3_p257_Barranco
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spelling paper:paper_01787683_v28_n3_p257_Barranco2023-06-08T15:19:19Z A density functional for liquid3He Jezek, Dora Marta Hernández, Ester Susana 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. 1993 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01787683_v28_n3_p257_Barranco 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
Jezek, Dora Marta
Hernández, Ester Susana
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.
author Jezek, Dora Marta
Hernández, Ester Susana
author_facet Jezek, Dora Marta
Hernández, Ester Susana
author_sort Jezek, Dora Marta
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
publishDate 1993
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01787683_v28_n3_p257_Barranco
http://hdl.handle.net/20.500.12110/paper_01787683_v28_n3_p257_Barranco
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AT hernandezestersusana adensityfunctionalforliquid3he
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