Non-perturbative path integral of 2d dilaton gravity and two-loop effects from scalar matter

被引：23
|
作者：
Kummer, W
Liebl, H
Vassilevich, DV
机构：
[1] Vienna Tech Univ, Inst Theoret Phys, A-1040 Vienna, Austria
[2] St Petersburg State Univ, Dept Theoret Phys, St Petersburg 198904, Russia
来源：
NUCLEAR PHYSICS B | 1998年 / 513卷 / 03期
基金：
奥地利科学基金会;
关键词：
D O I：
10.1016/S0550-3213(97)00796-7
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：
Performing a non-perturbative path integral for the geometric part of a large class of 2d theories without a kinetic term for the dilaton field, the quantum effects from scalar matter fields are treated as a perturbation. When integrated out to two-loops they yield a correction to the Polyakov term which is still exact in the geometric part. Interestingly enough the effective action only experiences a renormalization of the dilaton potential. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：723 / 734
页数：12
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