JOINT ICTP-SISSA-UNITS Seminar - Confining Strings and the Worldsheet Axion from the Lattice
Starts 4 Dec 2024 16:00
Ends 4 Dec 2024 17:00
Central European Time
Hybrid
Leonardo Building - Budinich Lecture Hall and Zoom
!!! New Venue: Budinich Lecture Hall !!!
Abstract
I will review the status of confining strings as observed in the lattice simulations of SU(N) Yang—Mills theory.
The currently observed states are all well described by the low energy effective theory of a long string consisting of two translational Goldstone bosons ("phonons"), along with a massive pseudoscalar ("the worldsheet axion") coupled to phonons through a worldsheet theta-term. Moreover, the leading axion-axion and axion-phonon interactions are well approximated by the TTbar deformation of a free axion.