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Abstract:

We analyze the possible bifurcations of the stationary points of the self-consistent flow on the Bloch sphere. We propose a generalized SU(2) model Hamiltonian for which, by means of a geometrically simple classification, we find the topologically invariant regions of the mean field flow in the space of interaction parameters. The borders of these regions are the bifurcation sets corresponding to general nonthermodynamic phase transitions. When these separatrices are crossed, the mean field flow undergoes a qualitative change. We also examine the consequences of the catastrophical configurations on the exact dynamics in quasispin space. © 1988 The American Physical Society.

Registro:

Documento: Artículo
Título:Bifurcation sets of the self-consistent flow in generalized SU(2) models
Autor:Vignolo, C.E.; Jezek, D.M.; Hernandez, E.S.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Año:1988
Volumen:38
Número:1
Página de inicio:506
Página de fin:513
DOI: http://dx.doi.org/10.1103/PhysRevC.38.506
Título revista:Physical Review C
ISSN:05562813
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v38_n1_p506_Vignolo

Referencias:

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Citas:

---------- APA ----------
Vignolo, C.E., Jezek, D.M. & Hernandez, E.S. (1988) . Bifurcation sets of the self-consistent flow in generalized SU(2) models. Physical Review C, 38(1), 506-513.
http://dx.doi.org/10.1103/PhysRevC.38.506
---------- CHICAGO ----------
Vignolo, C.E., Jezek, D.M., Hernandez, E.S. "Bifurcation sets of the self-consistent flow in generalized SU(2) models" . Physical Review C 38, no. 1 (1988) : 506-513.
http://dx.doi.org/10.1103/PhysRevC.38.506
---------- MLA ----------
Vignolo, C.E., Jezek, D.M., Hernandez, E.S. "Bifurcation sets of the self-consistent flow in generalized SU(2) models" . Physical Review C, vol. 38, no. 1, 1988, pp. 506-513.
http://dx.doi.org/10.1103/PhysRevC.38.506
---------- VANCOUVER ----------
Vignolo, C.E., Jezek, D.M., Hernandez, E.S. Bifurcation sets of the self-consistent flow in generalized SU(2) models. 1988;38(1):506-513.
http://dx.doi.org/10.1103/PhysRevC.38.506