The Lee-Wick Fields out of Gravity
arXiv:0705.3287 · doi:10.1016/j.physletb.2007.11.082
Abstract
We study the Maxwell-Einstein theory in the framework of effective field theories. We show that the modified one-loop renormalizable Lagrangian due to quantum gravitational effects contains a Lee-Wick vector field as an extra degree of freedom in the theory. Thus gravity provides a natural mechanism for the emergence of this exotic particle.
8 pages, 1 figure, typos fixed
References in corpus (3)
Cited by in corpus (23)
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