Instantons, euclidean wormholes and AdS/CFT

0Citations
Citations of this article
8Readers
Mendeley users who have this article in their library.

Abstract

I present an informal overview of several recent results about Euclidean saddle points sourced by axion fields in quantum gravity (AdS/CFT), such as wormholes, their extremal "D-instanton" limits and their under-extremal singular counterparts. Concerning wormholes we argue they cannot contribute to the path integral because a stability analysis suggests they fragment like other super-extremal objects. For concrete AdS/CFT embeddings the Euclidean saddle point solutions are neatly described by geodesic curves living inside moduli spaces and can typically be solved for using group theory. Our working example is AdS5 ×S5/Zk and allows for smooth Euclidean wormholes. For the supersymmetric D-instanton-like solutions we seem to find a match with the instantons in the dual N = 2 quivers. This match even extends a bit further to self-dual instantons without supersymmetry.

Cite

CITATION STYLE

APA

Van Riet, T. (2019). Instantons, euclidean wormholes and AdS/CFT. In Proceedings of Science (Vol. 376). Sissa Medialab Srl. https://doi.org/10.22323/1.376.0121

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free