Phase transition in quantum gravity
作者:
Viqar Husain,
Sebastian Jaimungal,
期刊:
AIP Conference Proceedings
(AIP Available online 1999)
卷期:
Volume 493,
issue 1
页码: 238-242
ISSN:0094-243X
年代: 1999
DOI:10.1063/1.1301591
出版商: AIP
数据来源: AIP
摘要:
A fundamental problem with attempting to quantize general relativity is its perturbative non-renormalizability. However, this fact does not rule out the possibility that non-perturbative effects can be computed, at least in some approximation. We outline a quantum field theory calculation, based on general relativity as the classical theory, which implies a phase transition in quantum gravity. The order parameters are composite fields derived from spacetime metric functions. These are massless below a critical energy scale and become massive above it. There is a corresponding breaking of classical symmetry. ©1999 American Institute of Physics.
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