ICCUB Seminar

Cobordisms and the Swampland

By Miguel Montero (Harvard)   

Friday 15 Jan , 12:00:00

Place: Zoom seminar
E-mail: mtomasevic@icc.ub.edu, jmartinez@icc.ub.edu

 
Abstract
The Swampland program aims to constrain low-energy physics of quantum gravity in a universal way. Recently, much progress has been made by the application of techniques of corbordism theory, which quantify topology-changing processes and can have a strong impact on low-energy physics. I will focus on two such results: Cobordisms can be used to produce a wide class of new examples of bubbles of nothing, which are universal instabilities of nonsupersymmetric vacua. Secondly, cobordisms also constrain the periodicity of the rank of higher-dimensional N=1 supersymmetric theories. The resulting constraint is so strong that it allows one to achieve string universality: The only observed values of the rank in string compactifications are precisely those allowed by Swampland constraints.
Notes
If you are not an ICCUB member and would like to attend this activity, please send an email to Marija Tomasevic or Jairo Martínez.