Avenida Rovisco Pais

Aug 30, 2024 | link.aps.org | Rafael C. Torres |Instituto Técnico |Universidade de Lisboa |Avenida Rovisco Pais

The 4D compact U(1) gauge theory has a well-established phase transition between a confining and a Coulomb phase. In this paper, we revisit this model using state-of-the-art Monte Carlo simulations on anisotropic lattices. We map out the coupling-temperature phase diagram, and determine the location of the tricritical point, T/K0≃0.19, below which the first-order transition is observed.