Abstract:
We apply a recent generalization of the fluid-dynamical scheme of nuclear physics that includes the pair density and current of superfluids, to trace the particle transition currents of an unpolarized fermion system in a harmonic trap. These current fluctuations are driven by the equilibrium density and gap and by the oscillations in the particle densities. We analize the velocity portraits of either species for the lowest multipolar excitations employing different equations of state of the unperturbed fluids, in order to establish the role of the equilibrium gap. © 2010 Springer Science+Business Media, LLC.
Registro:
| Documento: |
Artículo
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| Título: | Particle currents in a fluid-dynamical description of two trapped fermion species |
| Autor: | Hernández, E.S.; Capuzzi, P.; Szybisz, L. |
| Filiación: | Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
Comisión Nacional de Energía Atómica, Buenos Aires, Argentina
|
| Palabras clave: | Fluid-dynamics; Particle currents; Superfluid fermions; Current fluctuations; Equilibrium density; Fermion systems; Harmonic trap; Multipolar excitations; Pair density; Particle currents; Particle densities; Superfluid fermions; Equations of state; Nuclear physics; Quantum chemistry; Fluids |
| Año: | 2011
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| Volumen: | 162
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| Número: | 3-4
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| Página de inicio: | 281
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| Página de fin: | 286
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| DOI: |
http://dx.doi.org/10.1007/s10909-010-0270-8 |
| Título revista: | Journal of Low Temperature Physics
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| Título revista abreviado: | J. Low Temp. Phys.
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| ISSN: | 00222291
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| CODEN: | JLTPA
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| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222291_v162_n3-4_p281_Hernandez |
Referencias:
- Amoruso, M., Meccoli, I., Minguzzi, A., Tosi, M.P., (1999) Eur. Phys. J. D, 7, p. 441. , 10.1007/s100530050588 1999EPJD.7.441A
- Bruun, G.M., Clark, C.W., (1999) Phys. Rev. Lett., 83, p. 5415. , 10.1103/PhysRevLett.83.5415 1999PhRvL.83.5415B
- Baranov, M.A., Petrov, D.S., (2000) Phys. Rev. A, 62, p. 041601. , 10.1103/PhysRevA.62.041601 2000PhRvA.62d1601B
- Minguzzi, A., Tosi, M.P., (2001) Phys. Rev. A, 63, p. 023609. , 10.1103/PhysRevA.63.023609 2001PhRvA.63b3609M
- Capuzzi, P., Hernández, E.S., Szybisz, L., (2008) Phys. Rev. A, 78, p. 043619. , 10.1103/PhysRevA.78.043619 2008PhRvA.78d3619C
- Capuzzi, P., Hernández, E.S., Szybisz, L., (2010) Eur. Phys. J., 60, p. 347. , 2010EPJD.60.347C
- Hernández, E.S., Capuzzi, P., Szybisz, L., (2010) J. Low Temp. Phys., , 10.1007/s10909-010-0230-3
- Grasso, M., Urban, M., (2003) Phys. Rev. A, 68, p. 033610. , 10.1103/PhysRevA.68.033610 2003PhRvA.68c3610G
- Papenbrock, T., Bertsch, G.F., (1999) Phys. Rev. C, 59, p. 2052. , 10.1103/PhysRevC.59.2052 1999PhRvC.59.2052P
- Heiselberg, H., Fermi systems with long scattering lengths (2001) Physical Review A - Atomic, Molecular, and Optical Physics, 63 (4), pp. 1-7. , DOI 10.1103/PhysRevA.63.043606, 043606
- Combescot, R., Leyronas, X., (2002) Phys. Rev. Lett., 89, p. 190405. , 10.1103/PhysRevLett.89.190405 2002PhRvL.89s0405C
- Kohn, W., (1961) Phys. Rev., 123, p. 1242. , 0098.22601 10.1103/PhysRev.123.1242 1961PhRv.123.1242K
Citas:
---------- APA ----------
Hernández, E.S., Capuzzi, P. & Szybisz, L.
(2011)
. Particle currents in a fluid-dynamical description of two trapped fermion species. Journal of Low Temperature Physics, 162(3-4), 281-286.
http://dx.doi.org/10.1007/s10909-010-0270-8---------- CHICAGO ----------
Hernández, E.S., Capuzzi, P., Szybisz, L.
"Particle currents in a fluid-dynamical description of two trapped fermion species"
. Journal of Low Temperature Physics 162, no. 3-4
(2011) : 281-286.
http://dx.doi.org/10.1007/s10909-010-0270-8---------- MLA ----------
Hernández, E.S., Capuzzi, P., Szybisz, L.
"Particle currents in a fluid-dynamical description of two trapped fermion species"
. Journal of Low Temperature Physics, vol. 162, no. 3-4, 2011, pp. 281-286.
http://dx.doi.org/10.1007/s10909-010-0270-8---------- VANCOUVER ----------
Hernández, E.S., Capuzzi, P., Szybisz, L. Particle currents in a fluid-dynamical description of two trapped fermion species. J. Low Temp. Phys. 2011;162(3-4):281-286.
http://dx.doi.org/10.1007/s10909-010-0270-8
