The Fredenhagen-Marcu operator in the gauge-Higgs Z(2) LGT at finite temperature
Abstract
We explore the possibility to use the Fredenhagen-Marcu operator as a candidate order parameter of the deconfinement phase transition in gauge matter systems at finite temperature. Concretely, we compute by numerical simulations this operator in the (2+1)-dimensional Z(2) lattice gauge theory (LGT) with Z(2) gauge fields coupled to Z(2)-valued Higgs fields. While we cannot provide an unambiguous evidence, we present some hints that the Fredenhagen-Marcu operator is capable of distinguishing the deconfinement phase from the Higgs and confinement phases of the theory.
Fields of Study & Subjects
Quantum Chromodynamics and Particle Interactions
Black Holes and Theoretical Physics
Physics of Superconductivity and Magnetism
Publication details
- Journal / source
- Physics Letters B
- Volume
- 880
- Pages
- 140832–140832
- Publication date
- 6 August 2026
- Language
- EN