Theory Group Seminars

Towards Explicit States in a Sigma Model

Name: Towards Explicit States in a Sigma Model
Start: 2019-05-09T15:00:00+02:00
End: 2019-05-09T16:00:00+02:00
Location: No location set

by Jarah Evslin (Institute of Modern Physics, CAS)

Thursday 9 May 2019, 15:00 → 16:00 Europe/Rome

Description

In the CP1 sigma model, fractional instantons nonpertubatively generate a mass gap.  To understand how they do it, we wish to explicitly calculate the ground state and first excited state wave functions using the known equivalence to the XXX spin chain.   We describe a novel two-step procedure for the calculation of the continuum limit of these wave functions.