A GENERALIZED UNCERTAINTY PRINCIPLE IN QUANTUM-GRAVITY

被引：880

作者：

MAGGIORE, M ^{[1
]}

机构：

[1] UNIV PISA,DIPARTIMENTO FIS,I-56100 PISA,ITALY

来源：

PHYSICS LETTERS B | 1993年 / 304卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)91401-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss a Gedanken experiment for the measurement of the area of the apparent horizon of a black hole in quantum gravity. Using rather general and model-independent considerations we find a generalized uncertainty principle which agrees with a similar result obtained in the framework of string theories. The result indicates that a minimum length of the order of the Planck length emerges naturally from any quantum theory of gravity, and that the concept of black hole is not operationally defined if the mass is smaller than the Planck mass.

引用

页码：65 / 69

页数：5

共 18 条

[1] CAN SPACETIME BE PROBED BELOW THE STRING SIZE [J].