2025/01/20 by Motokazu Abe, Abe, Motokazu, Okuto Morikawa +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Atomic and Subatomic Physics Research #Pulsars and Gravitational Waves Research
paper · pdf · doi:10.48550/arxiv.2501.11438
The pure SU(N) gauge theory with a θ term has the ℤN 1-form global symmetry. When this symmetry is gauged, it is formally established that the topological charge becomes fractional. In this talk, we generate gauge configurations using the HMC method with coupling to the gauged ℤN 2-form gauge field. After smoothing these configurations via the gradient flow method, we numerically confirm that the topological charge has a fractional value. We also anticipate that these higher-form fields can solve the topological freezing problem.