Non-locality in quantum field theory due to general relativity

被引：14

作者：

Calmet, Xavier ^{[1
]}

Croon, Djuna ^{[1
]}

Fritz, Christopher ^{[1
]}

机构：

[1] Univ Sussex, Phys & Astron, Brighton BN1 9QH, E Sussex, England

来源：

EUROPEAN PHYSICAL JOURNAL C | 2015年 / 75卷 / 12期

基金：

英国科学技术设施理事会;

关键词：

ASYMPTOTIC BEHAVIORS; GRAVITY; INFLATION; UNITARITY;

D O I：

10.1140/epjc/s10052-015-3838-2

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：

We show that general relativity coupled to a quantum field theory generically leads to non-local effects in the matter sector. These non-local effects can be described by non-local higher dimensional operators which remarkably have an approximate shift symmetry. When applied to inflationary models, our results imply that small non-Gaussianities are a generic feature of models based on general relativity coupled to matter fields. However, these effects are too small to be observable in the cosmic microwave background.

引用

页码：1 / 5

页数：5

共 30 条

[1]

[Anonymous], PHYS REV D

[2]

Antoniadis I., 2011, JHEP, V1111, P039

[3] Remarks on Higgs inflation [J].