Bogomol'nyi Bounds for Two-Dimensional Lattice Systems.
(1997)
Journal Article
Ward, R. (1997). Bogomol'nyi Bounds for Two-Dimensional Lattice Systems. Communications in Mathematical Physics, 184(2), 397-410. https://doi.org/10.1007/s002200050065
The O(3) sigma model and abelian Higgs model in two space dimensions admit topological (Bogomol'nyi) lower bounds on their energy. This paper proposes lattice versions of these systems which maintain the Bogomol'nyi bounds. One consequence is that in... Read More about Bogomol'nyi Bounds for Two-Dimensional Lattice Systems..