Supersymmetry of FRW barotropic cosmologies
"Barotropic FRW cosmologies are presented from the standpoint of nonrelativis-tic supersymmetry. First, we reduce the barotropic FRW system of differential equations to simple harmonic oscillator differential equations. Employing the fac-torization procedure, the solutions of the latter equations...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2006 |
| País: | México |
| Institución: | Instituto Potosino de Investigación Científica y Tecnológica |
| Repositorio: | Repositorio Institucional del IPICYT |
| Idioma: | inglés |
| OAI Identifier: | oai:ipicyt.repositorioinstitucional.mx:1010/888 |
| Acceso en línea: | http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/888 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Autor/Supersymmetry info:eu-repo/classification/Autor/FRW barotropic cosmology info:eu-repo/classification/Autor/Riccati equation info:eu-repo/classification/cti/1 |
| Sumario: | "Barotropic FRW cosmologies are presented from the standpoint of nonrelativis-tic supersymmetry. First, we reduce the barotropic FRW system of differential equations to simple harmonic oscillator differential equations. Employing the fac-torization procedure, the solutions of the latter equations are divided into the two classes of bosonic (nonsingular) and fermionic (singular) cosmological solutions. We next introduce a coupling parameter denoted by K between the two classes of solutions and obtain barotropic cosmologies with dissipative features acting on the scale factors and spatial curvature of the universe. The K-extended FRW equations in comoving time are presented in explicit form in the low coupling regime. The standard barotropic FRW cosmologies correspond to the dissipa-tionless limit K = 0." |
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