Nonsingular and ghost-free infinite derivative gravity with torsion

Alvaro de la Cruz-Dombriz*, Francisco Jose Maldonado Torralba, Anupam Mazumdar

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)


We present the most general quadratic curvature action with torsion including infinite covariant derivatives and study its implications around the Minkowski background via the Palatini approach. Provided the torsion is solely given by the background axial field, the metric and torsion arc shown to decouple, and both of them can be made ghost and singularity free for a fermionic source.

Original languageEnglish
Article number104021
Number of pages7
JournalPhysical Review D
Issue number10
Publication statusPublished - 13-May-2019

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