Supersymmetry of FRW Barotropic Cosmologies |
| |
Authors: | H C Rosu P Ojeda-May |
| |
Institution: | (1) Potosinian Institute of Science and Technology (IPICyT), Apartado Postal 3-74 Tangamanga, 78231 San Luis Potosí, Mexico |
| |
Abstract: | Barotropic FRW cosmologies are presented from the standpoint of nonrelativistic supersymmetry. First, we reduce the barotropic FRW system of differential equations to simple harmonic oscillator differential equations. Employing the factorization 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 dissipationless limit K = 0. |
| |
Keywords: | supersymmetry FRW barotropic cosmology Riccati equation |
本文献已被 SpringerLink 等数据库收录! |