New nonlocal effective action

被引：23
作者：
Barvinsky, AO
Mukhanov, VF
机构：
[1] PN Lebedev Phys Inst, Theory Dept, Moscow 117924, Russia
[2] Univ Munich, Sekt Phys, D-8000 Munich, Germany
来源：
PHYSICAL REVIEW D | 2002年 / 66卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.66.065007
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We suggest a new method for the calculation of the nonlocal part of the effective action. It is based on the resummation of the perturbation series for the heat kernel and its functional trace at large values of the proper time parameter. We derive a new, essentially nonperturbative, nonlocal contribution to the effective action in spacetimes with dimensions d>2.
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页数：15
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