Monopoles and Strings in Noncommutative Gauge Theory

Abstract

We study some non-perturbative aspects of noncommutative gauge theories. We find analytic solutions of the equations of motion, for noncommutative U(1) gauge theory, that describe magnetic monopoles with a finite tension string attached. These solutions are non-singular, finite and sourceless. We identify the string with the projection of a D-string ending on a D3-brane in the presence of a constant B-field.

harvmac, 37 pp; v2. tension matched, typos corrected, refs added

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