A Naturally Renormalized Quantum Field Theory

被引：29

作者：

Rouhani, S. ^{[2
]}

Takook, M. V. ^{[1
]}

机构：

[1] Razi Univ, Dept Phys, Kermanshah, Iran

[2] Islamic Azad Univ, Plasma Phys Res Ctr, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2009年 / 48卷 / 10期

关键词：

Quantum field; Krein space; Metric fluctuation; GRAVITON 2-POINT FUNCTION; LOOP EFFECTIVE ACTION; DESITTER SPACE; SCALAR FIELD; SITTER SPACE; STATES; PROPAGATOR;

D O I：

10.1007/s10773-009-0064-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It was shown that quantum metric fluctuations smear out the singularities of Green functions on the light cone (Ford, arXiv:gr-qc/9707062), but it does not remove other ultraviolet divergences of the quantum field theory (QFT). We have proved that quantization in indefinite metric, i.e. QFT in Krein space, removes all divergences of the theory except light cone singularity (Gazeau, et al., Class. Quantum Gravity, 17:1415, 2000, arXiv:gr-qc/9904023; Takook, Int. J. Mod. Phys. E, 11:509, 2002, arXiv:gr-qc/0006019). In this paper, by considering the QFT in Krein space and the quantum metric fluctuations, it is shown that all divergences can be removed.

引用

页码：2740 / 2747

页数：8

共 32 条

[1] VACUUM STATES IN DE-SITTER SPACE [J].