Grignani G, Orland P, Paniak LD, Semenoff GW
Institute for Advanced Study, Einstein Drive, Princeton, New Jersey 08540, USA.
Phys Rev Lett. 2000 Oct 16;85(16):3343-6. doi: 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.
我们研究了有限温度下IIA型弦微扰理论的零紧致化。我们证明了一个关于黎曼曲面的定理，该定理表明无限动量框架超弦世界面的模空间与矩阵弦模型中推测用于描述M理论的分支覆盖瞬子的模空间相同。这意味着迪杰格拉夫、韦尔林德和韦尔林德提出的矩阵模型中弦自由度的识别是正确的，并且其自然推广在亏格展开的所有阶数下都能产生黎曼曲面的模空间。
