arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1804.06602hep-thgr-qc
收藏

反对称张量场在$F(R)$引力下的不可见性

Invisibility of antisymmetric tensor fields in the light of $F(R)$ gravity

Ashmita Das, Tanmoy Paul, Soumitra SenGupta

摘要:

一个自然的问题来自标量、费米子和矢量自由度(d.o.f.)的可观测特征。在我们的宇宙中,随着自旋2对称张量场的引力形式:为什么我们的宇宙是免费的无质量反对称张量模式的任何可感知的签名?这项工作带来了一个自然的解释,这些现象通过更高的曲率量子d.o.f.在早期宇宙中占主导地位的引力区域。在F(R)引力模型的背景下,我们提出如何标量d.o.f.与模型中的较高曲率项相关联的非对称性可以在任何反对称无质量模式和各种标准模型场之间产生严重抑制的耦合。

英文摘要:

A natural question arises from observable signatures of scalar, fermion, and vector degrees of freedom (d.o.f.) in our Universe along with spin 2 symmetric tensor field in the form of gravity: why is our Universe is free of any perceptible signature of massless antisymmetric tensor modes? This work brings out a natural explanation of these phenomena through higher curvature quantum d.o.f. in the gravity sector that were dominant in the early universe. In the backdrop of a F(R) gravity model, we propose how the scalar d.o.f. associated with higher curvature term in the model can generate a heavily suppressed coupling between any antisymmetric massless modes and various standard model fields.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑