SUMMING OVER ALL GENERA FOR D-GREATER-THAN-1 - A TOY MODEL

被引：102

作者：

AMBJORN, J

DURHUUS, B

JONSSON, T

机构：

[1] MATH INST COPENHAGEN,DK-2100 COPENHAGEN 0,DENMARK

[2] UNIV ICELAND,INST SCI,107 REYKJAVIK,ICELAND

来源：

PHYSICS LETTERS B | 1990年 / 244卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(90)90337-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a reduced model of discretized random surfaces which is believed to be a good approximation to the standard theory of discretized random surfaces for large dimensions d. In this model we observe multicritical behaviour. The relation between internal observables, in the sense of two-dimensional gravity, and external observables, in the sense of string theory, can be studied in detail. Furthermore, it is possible to perform explicitly the summation over all genera in this model. © 1990.

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页码：403 / 412

页数：10

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