Dirichlet Topological Defects

Abstract

We propose a class of field theories featuring solitonic solutions in which topological defects can end when they intersect other defects of equal or higher dimensionality. Such configurations may be termed ``Dirichlet topological defects'', in analogy with the D-branes of string theory. Our discussion focuses on defects in scalar field theories with either gauge or global symmetries, in (3+1) dimensions; the types of defects considered include walls ending on walls, strings on walls, and strings on strings.

13 pages, 3 figures, RevTeX. (References improved.)

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• Monopoles, Vortices, Domain Walls and D-Branes: The Rules of Interaction
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• BPS Domain Walls in Large N Supersymmetric QCD
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• A practical model for cosmic (p,q) superstrings
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• BPS Boojums in N=2 supersymmetric gauge theories II