DILATON GRAVITY IN 2+EPSILON DIMENSIONS

被引:13
|
作者
KOJIMA, S [1 ]
SAKAI, N [1 ]
TANII, Y [1 ]
机构
[1] SAITAMA UNIV, DEPT PHYS, URAWA, SAITAMA 338, JAPAN
关键词
D O I
10.1016/0550-3213(94)90133-3
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The quantum theory of dilaton gravity is studied in 2 + epsilon dimensions. The divergences are computed and renormalized at one-loop order. The mixing between the Liouville field and the dilaton field eliminates the 1/epsilon singularity in the Liouville-dilaton propagator. This smooth behavior of the dilaton gravity theory in the epsilon --> O limit solves the oversubtraction problem which afflicted the higher orders of Einstein gravity in 2 + epsilon dimensions. As a nontrivial fixed point, we find a dilaton gravity action which can be transformed to a CGHS type action.
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页码:223 / 243
页数:21
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