A new gravitational action for the trace anomaly
A new gravitational action for the trace anomaly
复制标题
痕量异常的新引力作用
DOI:
10.1016/j.physletb.2023.138031
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发表时间:
2023
影响因子:
4.4
通讯作者:
Gabadadze, Gregory
中科院分区:
文献类型:
--
作者:
Gabadadze, Gregory
The question of building a local diff-invariant effective gravitational action for the trace anomaly is reconsidered. General Relativity (GR) combined with the existing action for the trace anomaly is an inconsistent low energy effective field theory. This issue is addressed by extending GR into a certain scalar-tensor theory, which preserves the GR trace anomaly equation, up to higher order corrections. The extension introduces a new mass scale – assumed to be below the Planck scale – that governs four high dimensional terms in a local diff-invariant trace anomaly action. Such terms can be kept, while an infinite number of Planck-suppressed invariants are neglected. The resulting theory maintains two derivative equations of motion. In a certain approximation it reduces to the conformal Gallileon, which could have physical consequences.
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影响因子:
3
作者:
D. Anselmi
通讯作者:
D. Anselmi
影响因子:
4.4
作者:
CHRISTENSEN, SM;DUFF, MJ
通讯作者:
DUFF, MJ
影响因子:
4.4
作者:
M. Chanowitz;J. Ellis
通讯作者:
J. Ellis
影响因子:
4.4
作者:
R. J. Riegert
通讯作者:
R. J. Riegert