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arXiv · hep-th/9110034

Open String Theory in 1+1 Dimensions

M. Bershadsky·D. Kutasov
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Abstract

We show that tree level open two dimensional string theory is exactly solvable; the solution exhibits some unusual features, and is qualitatively different from the closed case. The open string ``tachyon'' S -- matrix describes free fermions, which can be interpreted as the quarks at the ends of the string. These ``quarks'' live naturally on a lattice in space-time. We also find an exact vacuum solution of the theory, corresponding to a charged black hole.

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M. Bershadsky, D. Kutasov. 1991-10-14. Open String Theory in 1+1 Dimensions. https://doi.org/10.1016/0370-2693(92)91993-j

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