Smearing out contact terms in ghost-free infinite derivative quantum gravity

Autor:	Vinckers, Ulrich K. Beckering, de la Cruz-Dombriz, Álvaro, Mazumdar, Anupam
Rok vydání:	2024
Předmět:	General Relativity and Quantum Cosmology High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	In the context of ghost-free infinite derivative gravity we consider the single graviton exchange either between two spinless particles or between a spinless particle and a photon. To this end, we compute the gravitational potential for both cases and derive the quantum correction that arises at the linearized level. In the local theory it is well-known that such a correction is in the form of a Dirac delta function. Here we show that, for the nonlocal theory and in contrast to the local theory, the quantum correction is smeared out and takes on non-zero values for a non-zero separation between the two particles. Comment: 6 pages, no figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2402.18694 Zobrazit plný text záznamu View this record from Arxiv