A Monopole Solution in open String Theory

Details A Monopole Solution in open String Theory A Monopole Solution in open String Theory

1993-04-21

arxiv.org/abs/hep-th/9304096v1

Nucl.Phys.B414:114-128,1994

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, Latex, DESY 93-151

Scientific paper

10.1016/0550-3213(94)90424-3

We investigate a solution of the Weyl invariance conditions in open string theory in 4 dimensions. In the closed string sector this solution is a combination of the SU(2) Wess--Zumino--Witten model and a Liouville theory. The investigation is carried out in the $\sigma$ model approach where we have coupled all massless modes (especially an abelian gauge field via the boundary) and tachyon fields. Neglecting all higher derivatives in the field strength we get an exact result which can be interpreted as a monopole configuration living in non--trivial space time. The masses of both tachyon fields are quantized by $c_{wzw}$ and vanish for $c_{wzw} = 1$.

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