标题： FRW 无粘流体宇宙学的超对称性 显示英文标题

标题： Supersymmetry of FRW barotropic cosmologies

摘要： 从非相对论超对称的角度介绍了无旋FRW宇宙学。 首先，我们将无旋FRW微分方程组简化为简谐振子微分方程。 采用因式分解过程，后者的解被分为两类：玻色子（非奇异）和费米子（奇异）宇宙学解。 接下来，我们引入一个耦合参数K，该参数表示这两类解之间的耦合，并得到具有耗散特性的无旋宇宙学，这些特性作用于宇宙的尺度因子和空间曲率。 在共动时间中，低耦合区域的K扩展FRW方程以显式形式给出。 标准的无旋FRW宇宙学对应于耗散为零的情况K=0 显示英文摘要

摘要： 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