Matrix Theory Interpretation of DLCQ String Worldsheets

Details Matrix Theory Interpretation of DLCQ String Worldsheets Matrix Theory Interpretation of DLCQ String Worldsheets

2000-04-27

arxiv.org/abs/hep-th/0004194v3

Phys.Rev.Lett. 85 (2000) 3343-3346

Physics

High Energy Physics

High Energy Physics - Theory

9 pages LaTeX. Changes in style, typos corrected

Scientific paper

10.1103/PhysRevLett.85.3343

We study the null compactification of type-IIA-string perturbation theory at finite temperature. We prove a theorem about Riemann surfaces establishing that the moduli spaces of infinite-momentum-frame superstring worldsheets are identical to those of branched-cover instantons in the matrix-string model conjectured to describe M-theory. This means that the identification of string degrees of freedom in the matrix model proposed by Dijkgraaf, Verlinde and Verlinde is correct and that its natural generalization produces the moduli space of Riemann surfaces at all orders in the genus expansion.

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