CMSA Quantum Matter in Mathematics and Physics: Domain Walls in 4d N=1 Supersymmetric Yang-Mills


View Calendar
February 4, 2021 10:30 am - 12:00 pm
via Zoom Video Conferencing

Diego Delmastro - Perimeter PI

4d N=1 super Yang-Mills has multiple gapped vacua arising from the spontaneously broken discrete R-symmetry. Therefore, the theory admits stable domain walls interpolating between any two vacua, but it is a nonperturbative problem to determine the low energy theory on the domain wall. We propose an explicit answer to this question: the domain walls support specific topological quantum field theories. We provide nontrivial evidence for our proposals by exactly matching renormalization group invariant partition functions (twisted by all global symmetries).