Structure and stability of superfluid 4He systems with cylindrical symmetry
The structure and stability of superfluid 4He systems with cylindrical symmetry are studied. Ground-state energies and density profiles are computed by using density-functional approaches. A model to understand the energetics of cylindrical systems is developed by following the main ideas of the Dro...
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2001
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paper:paper_01631829_v64_n22_p2245231_Szybisz2023-06-08T15:13:56Z Structure and stability of superfluid 4He systems with cylindrical symmetry Szybisz, Leszek Gatica, Silvina María helium article chemical structure compression density energy mathematical model molecular stability temperature dependence The structure and stability of superfluid 4He systems with cylindrical symmetry are studied. Ground-state energies and density profiles are computed by using density-functional approaches. A model to understand the energetics of cylindrical systems is developed by following the main ideas of the Droplet Model utilized to describe spherical clusters. The necessary condition for stability is formulated by imposing a positive longitudinal isothermal compressibility along the principal axis of the cylinder. It is shown that free cylinders of 4He at T = 0 K are unstable. As an example of the evolution towards stable systems, results for liquid 4He confined by cylindrical nanopores in Cs are reported. Fil:Szybisz, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gatica, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v64_n22_p2245231_Szybisz http://hdl.handle.net/20.500.12110/paper_01631829_v64_n22_p2245231_Szybisz |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
helium article chemical structure compression density energy mathematical model molecular stability temperature dependence |
| spellingShingle |
helium article chemical structure compression density energy mathematical model molecular stability temperature dependence Szybisz, Leszek Gatica, Silvina María Structure and stability of superfluid 4He systems with cylindrical symmetry |
| topic_facet |
helium article chemical structure compression density energy mathematical model molecular stability temperature dependence |
| description |
The structure and stability of superfluid 4He systems with cylindrical symmetry are studied. Ground-state energies and density profiles are computed by using density-functional approaches. A model to understand the energetics of cylindrical systems is developed by following the main ideas of the Droplet Model utilized to describe spherical clusters. The necessary condition for stability is formulated by imposing a positive longitudinal isothermal compressibility along the principal axis of the cylinder. It is shown that free cylinders of 4He at T = 0 K are unstable. As an example of the evolution towards stable systems, results for liquid 4He confined by cylindrical nanopores in Cs are reported. |
| author |
Szybisz, Leszek Gatica, Silvina María |
| author_facet |
Szybisz, Leszek Gatica, Silvina María |
| author_sort |
Szybisz, Leszek |
| title |
Structure and stability of superfluid 4He systems with cylindrical symmetry |
| title_short |
Structure and stability of superfluid 4He systems with cylindrical symmetry |
| title_full |
Structure and stability of superfluid 4He systems with cylindrical symmetry |
| title_fullStr |
Structure and stability of superfluid 4He systems with cylindrical symmetry |
| title_full_unstemmed |
Structure and stability of superfluid 4He systems with cylindrical symmetry |
| title_sort |
structure and stability of superfluid 4he systems with cylindrical symmetry |
| publishDate |
2001 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v64_n22_p2245231_Szybisz http://hdl.handle.net/20.500.12110/paper_01631829_v64_n22_p2245231_Szybisz |
| work_keys_str_mv |
AT szybiszleszek structureandstabilityofsuperfluid4hesystemswithcylindricalsymmetry AT gaticasilvinamaria structureandstabilityofsuperfluid4hesystemswithcylindricalsymmetry |
| _version_ |
1768541982393630720 |