Modified gravity from the nonperturbative quantization of a metric

被引：24

作者：

Dzhunushaliev, Vladimir ^{[1
,2
,3
,4
,5
]}

Folomeev, Vladimir ^{[2
,3
,4
]}

Kleihaus, Burkhard ^{[4
]}

Kunz, Jutta ^{[4
]}

机构：

[1] Al Farabi Kazakh Natl Univ, Dept Theoret & Nucl Phys, Alma Ata 050040, Kazakhstan

[2] Al Farabi Kazakh Natl Univ, IETP, Alma Ata 050040, Kazakhstan

[3] NAS Kyrgyz Republ, Inst Physicotech Problems & Mat Sci, Bishkek 720071, Kyrgyzstan

[4] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany

[5] Eurasian Natl Univ, Inst Basic Res, Astana 010008, Kazakhstan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2015年 / 75卷 / 04期

关键词：

Scalar Field; Quantum Gravity; Gravity Theory; Ricci Tensor; Quantum Fluctuation;

D O I：

10.1140/epjc/s10052-015-3398-5

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：

Based on certain assumptions for the expectation value of a product of the quantum fluctuating metric at two points, the gravitational and scalar field Lagrangians are evaluated. Assuming a vanishing expectation value of the first-order terms of the metric, the calculations are performed with an accuracy of second order. It is shown that such quantum corrections give rise to modified gravity.

引用

页数：6

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