COSMOLOGICAL SOLUTIONS OF THE SEMICLASSICAL EINSTEIN-DIRAC EQUATIONS

被引：7

作者：

CHIMENTO, LP

JAKUBI, AS

PENSA, FG

机构：

[1] Departamento de Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 Buenos Aires, Pabellón I

来源：

CLASSICAL AND QUANTUM GRAVITY | 1990年 / 7卷 / 09期

关键词：

D O I：

10.1088/0264-9381/7/9/008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Exact solutions to the semiclassical backreaction equations with an unquantised Dirac field are found when the ratio of the renormalisation parameters beta and alpha is 9/4. For alpha (0 there is a one-parameter family of solutions which do not have particle horizons and a two-parameter family of solutions which oscillate at about the Planck frequency and, on average, behave asymptotically as a matter-dominated Friedmann solution. There is a two-parameter family with an asymptotically de Sitter stage, which is stable for any alpha )0 and beta )0.

引用

页码：1561 / 1565

页数：5

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