SCALAR FIELDS ON A ROBERTSON-WALKER BACKGROUND

被引：2
|
作者：
ILIOPOULOS, J
TOMARAS, TN
机构：
[1] UNIV PARIS 11,PHYS THEOR LAB,F-91405 ORSAY,FRANCE
[2] UNIV CRETE,DEPT PHYS,GR-71409 HERAKLION,GREECE
[3] RES CTR CRETE,GR-71409 HERAKLION,GREECE
来源：
PHYSICS LETTERS B | 1991年 / 255卷 / 01期
关键词：
D O I：
10.1016/0370-2693(91)91134-H
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the propagator of a massless minimally coupled scalar field in a power-law Robertson-Walker background. In the case where the energy-momentum density responsible for the formation of the background is provided by the scalar itself we find that the propagator shows no sign of singular infrared behavior for all values of the expansion parameter.
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页码：27 / 30
页数：4
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