String-Inspired Chern-Simons Modified Gravity In 4-Dimensions

TL;DR

This paper demonstrates that 4-dimensional Chern-Simons modified gravity models are specific instances of low energy effective string theories at first order in the string constant.

Contribution

It establishes a connection between Chern-Simons modified gravity and string theory, clarifying their relationship in four dimensions.

Findings

Chern-Simons gravity models are special cases of string effective models.

The connection is valid to first order in the string constant.

Provides a unified perspective on modified gravity and string theory.

Abstract

Chern-Simons modified gravity models in 4-dimensions are shown to be special cases of low energy effective string models to first order in the string constant.