Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1993-06-16
Phys.Rev.Lett. 71 (1993) 1969-1972
Physics
High Energy Physics
High Energy Physics - Theory
harvmac, CERN-TH. 6906/93, DFUPG 80/93
Scientific paper
10.1103/PhysRevLett.71.1969
We construct a lattice model of compact (2+1)-dimensional Maxwell-Chern- Simons theory, starting from its formulation in terms of gauge invariant quantities proposed by Deser and Jackiw. We thereby identify the topological excitations and their interactions. These consist of monopolo- antimonopole pairs bounded by strings carrying both magnetic flux and electric charge. The electric charge renders the Dirac strings observable and endows them with a finite energy per unit length, which results in a linearly confining string tension. Additionally, the strings interact via an imaginary, topological term measuring the (self-) linking number of closed strings.
Diamantini Cristina M.
Sodano Pasquale
Trugenberger Carlo A.
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