The 43rd International Symposium on Lattice Field Theory (Lattice 2026)

Tensor-Network Study of Confining Flux Tubes and Effective Strings in (2+1)D Compact U(1) Gauge Theory

30 Jul 2026, 14:40

20m

Margaret Brent A (Adele H. Stamp Student Union)

Contributed talk Quantum computing and quantum information Quantum computing and quantum information

Speaker

Alessio Negro (University of Bonn, HISKP)

Description

We study confining flux tubes in compact U(1) gauge theory in (2+1) dimensions using matrix product states and a recently introduced plaquette basis for the dual Hamiltonian. For open strings between static charges, we compute both the static potential and the transverse flux-tube profile and compare them with effective string theory predictions. We also determine the potential of closed strings winding around the spatial volume.