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Abstract:

The hydrodynamical model that has proven successful to describe excitations of superfluid helium in the bulk and adsorbed on planar surfaces, cylinders, and spheres is applied to investigate the long-wavelength density fluctuation spectrum of 3He confined to an infinite linear wedge at zero temperature. It is found that in spite of the breaking of axial symmetry, the velocity potentials and the shape of the meniscus can be described in terms of an orbital quantum number or quasiangular momentum, and that the density wave spectrum is formally similar to that of helium shells adsorbed in a cylindrical pore. As an illustration, the stability of phonon and ripplon modes are discussed in terms of the relevant parameters of helium in a cesium wedge. © 2010 The American Physical Society.

Registro:

Documento: Artículo
Título:Hydrodynamical description of long-wavelength density fluctuations of helium in wedges
Autor:Hernández, E.S.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
Año:2010
Volumen:81
Número:2
DOI: http://dx.doi.org/10.1103/PhysRevB.81.024514
Título revista:Physical Review B - Condensed Matter and Materials Physics
Título revista abreviado:Phys. Rev. B Condens. Matter Mater. Phys.
ISSN:10980121
CODEN:PRBMD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v81_n2_p_Hernandez

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Citas:

---------- APA ----------
(2010) . Hydrodynamical description of long-wavelength density fluctuations of helium in wedges. Physical Review B - Condensed Matter and Materials Physics, 81(2).
http://dx.doi.org/10.1103/PhysRevB.81.024514
---------- CHICAGO ----------
Hernández, E.S. "Hydrodynamical description of long-wavelength density fluctuations of helium in wedges" . Physical Review B - Condensed Matter and Materials Physics 81, no. 2 (2010).
http://dx.doi.org/10.1103/PhysRevB.81.024514
---------- MLA ----------
Hernández, E.S. "Hydrodynamical description of long-wavelength density fluctuations of helium in wedges" . Physical Review B - Condensed Matter and Materials Physics, vol. 81, no. 2, 2010.
http://dx.doi.org/10.1103/PhysRevB.81.024514
---------- VANCOUVER ----------
Hernández, E.S. Hydrodynamical description of long-wavelength density fluctuations of helium in wedges. Phys. Rev. B Condens. Matter Mater. Phys. 2010;81(2).
http://dx.doi.org/10.1103/PhysRevB.81.024514