QED{sub 3} on a space-time lattice: Compact versus noncompact formulation

Journal Article · Tue Nov 01 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.094508· OSTI ID:20713856

Fiore, R; Giudice, P; Giuliano, D; Marmottini, D; Papa, A ^[1]; Sodano, P ^[2]

---

1. Dipartimento di Fisica, Universita della Calabria, Italy and Istituto Nazionale di Fisica Nucleare, Gruppo collegato di Cosenza, I-87036 Arcavacata di Rende, Cosenza (Italy)
2. Dipartimento di Fisica, Universita di Perugia (Italy) and Istituto Nazionale di Fisica Nucleare, via A. Pascoli, I-06100 Perugia (Italy)

We study quantum electrodynamics in a (2+1)-dimensional space-time with two flavors of dynamical fermions by numerical simulations on the lattice. We discretize the theory using both the compact and the noncompact formulations and analyze the behavior of the chiral condensate and of the monopole density in the finite lattice regime as well as in the continuum limit. By comparing the results obtained with the two approaches, we draw some conclusions about the possible equivalence of the two lattice formulations in the continuum limit.

• OSTI ID: 20713856
• Journal Information: Physical Review. D, Particles Fields, Vol. 72, Issue 9; Other Information: DOI: 10.1103/PhysRevD.72.094508; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
COMPUTERIZED SIMULATION
FERMIONS
FLAVOR MODEL
LATTICE FIELD THEORY
MAGNETIC MONOPOLES
NUMERICAL ANALYSIS
QUANTUM ELECTRODYNAMICS
SPACE-TIME