Trace anomaly of dilaton-coupled scalars in two dimensions

被引:68
作者
Bousso, R
Hawking, S
机构
[1] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 9EW, England
[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
关键词
D O I
10.1103/PhysRevD.56.7788
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Conformal scalar fields coupled to the dilaton appear naturally in two-dimensional models of black hole evaporation. We show that their trace anomaly is (1/24 pi)[R-6(del phi)(2)-2 square phi]. It follows that a Russo-Susskind-Thorlacius-type counterterm appears naturally in the one-loop effective action. [S0556-2821(97)01924-3].
引用
收藏
页码:7788 / 7791
页数:4
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