This article is cited in 1 paper

Open string in background non-Abelian field

B. M. Barbashov, A. P. Koshkarov


Abstract: The interaction of charged strings with an external field is of interest in connection with the low-energy limit in string field theory. The theory of a charged string interacting with an external electromagnetic field leads to an effective Born–Infeld action for the external field [1], i.e., the external field is restricted, this being a consequence of the nonlinearity. The present paper studies dynamics of a string in an external Yang–Mills field when the string carries a non-Abelian charge at its ends. The action function is found. A boundary-value problem and equations of motion are derived from the variational principle. Gauge conditions for such a system are proposed, and a particular solution corresponding to motion of the string in such a field is discussed.

Received: 10.10.1989

 English version: Theoretical and Mathematical Physics, 1990, 85:2, 1134–1139

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