Four-dimensional quantum gravity in the conformal sector.
Four-dimensional quantum gravity in the conformal sector.
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共形扇区中的四维量子引力。
DOI:
10.1103/physrevd.45.2013
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发表时间:
1992
期刊:
影响因子:
--
通讯作者:
E. Mottola
中科院分区:
文献类型:
--
作者:
I. Antoniadis;E. Mottola
We study the trace-anomaly-induced dynamics of the conformal factor of four-dimensional (4D) quantum gravity. The resulting effective scalar theory is ultraviolet renormalizable, and possesses a nontrivial, infrared stable fixed point. The exact anomalous scaling dimension of the conformal factor at the critical point is derived. We argue that this theory describes 4D gravity at large distances and provides a framework for a dynamical solution of the cosmological-constant problem.