Is String Theory a Theory of Quantum Gravity?

被引：11
作者：
Giddings, Steven B. [1 ]
机构：
[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
来源：
FOUNDATIONS OF PHYSICS | 2013年 / 43卷 / 01期
关键词：
String theory; Quantum gravity; Ultraplanckian scattering; Unitarity; S-matrix; Black holes; Information paradox; Cosmology; Local observables; Locality; Locality bound;
D O I：
10.1007/s10701-011-9612-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Some problems in finding a complete quantum theory incorporating gravity are discussed. One is that of giving a consistent unitary description of high-energy scattering. Another is that of giving a consistent quantum description of cosmology, with appropriate observables. While string theory addresses some problems of quantum gravity, its ability to resolve these remains unclear. Answers may require new mechanisms and constructs, whether within string theory, or in another framework.
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页码：115 / 139
页数：25
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