BABY UNIVERSES AND FRACTAL STRUCTURE OF 2D GRAVITY

被引：0
作者：
THORLEIFSSON, G [1 ]
机构：
[1] NIELS BOHR INST,DK-2100 COPENHAGEN 0,DENMARK
来源：
NUCLEAR PHYSICS B | 1994年
关键词：
D O I：
10.1016/0920-5632(94)90500-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We extract the string susceptibility exponent gamma(str) by measuring the distribution of baby universes on surfaces in the case of various matter fields coupled to discrete 2d quantum gravity. For c less-than-or-equal-to 1 the results are in good agreement with the KPZ-formula, if logarithmic corrections are taken into account for c = 1. For c > 1 it is not a.s clear how to extract gamma(str) but universality with respect to c is observed in the fractal structure.
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页码：742 / 744
页数：3
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