String-inspired infinite-derivative theories of gravity:a brief overview

Biswas, Tirthabir and Talaganis, Spyridon (2015) String-inspired infinite-derivative theories of gravity:a brief overview. Modern Physics Letters A, 30 (03n04). ISSN 0217-7323

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Abstract

In String Theory, there often appears a rather interesting class of higher derivative theories containing an infinite set of derivatives in the form of an exponential. These theories may provide a way to tame ultraviolet (UV) divergences without introducing ghost-like states. Here we provide a brief overview on the progress that has been made over the last decade to construct such infinite-derivative theories of gravity (IDG) which may be able to address the singularity problems in gravity. In the process, we will present some general results that applies to covariant torsion-free metric theories of gravity.

Item Type:
Journal Article
Journal or Publication Title:
Modern Physics Letters A
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
82744
Deposited By:
Deposited On:
08 Nov 2016 16:42
Refereed?:
Yes
Published?:
Published
Last Modified:
04 Jun 2020 03:43