OBSERVATIONS ON PARTICLE CREATION BY STATIC GRAVITATIONAL-FIELDS

被引:9
作者
GROVE, PG
机构
[1] Res. and Planning Unit, Home Office, London
关键词
D O I
10.1088/0264-9381/7/8/014
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
It is argued that the Hawking radiation from black holes is not produced by the spacetime curvature as in Hawking's often repeated description (1975). Two-dimensional examples are given where the particle creation can be shown to be directly due to the collapsing object, the presence (or not) of spacetime curvature being irrelevant. A four-dimensional electrostatic example is used to show that particle creation by static external fields requires there to be no static vacuum state in the presence of the external field. A stable static vacuum does, however, exist around static black holes.
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页码:1353 / 1363
页数:11
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