BABY UNIVERSES IN 2D QUANTUM-GRAVITY

被引：64

作者：

AMBJORN, J ^{[1
]}

JAIN, S ^{[1
]}

THORLEIFSSON, G ^{[1
]}

机构：

[1] INDIAN INST SCI,CTR THEORET STUDIES,BANGALORE 560012,KARNATAKA,INDIA

来源：

PHYSICS LETTERS B | 1993年 / 307卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)90188-N

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the fractal structure of 2d quantum gravity, both for pure gravity and for gravity coupled to multiple gaussian fields and for gravity coupled to Ising spins. The roughness of the surfaces is described in terms of baby universes and using numerical simulations we measure their distribution which is related to the string susceptibility exponent gamma(string).

引用

页码：34 / 39

页数：6

共 21 条

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[6] AMBJORN J, IN PRESS NUCL PHYS B
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BAILLIE, CF
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[9] THE ISING-MODEL ON A RANDOM PLANAR LATTICE - THE STRUCTURE OF THE PHASE-TRANSITION AND THE EXACT CRITICAL EXPONENTS
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[10] A NAIVE MATRIX-MODEL APPROACH TO 2D QUANTUM-GRAVITY COUPLED TO MATTER OF ARBITRARY CENTRAL CHARGE
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