Unimodular gravity redux

  title={Unimodular gravity redux},
  author={Enrique {\'A}lvarez and Sergio Gonz'alez-Mart'in and Mario Herrero-Valea and C. P. Mart'in},
  journal={Physical Review D},
It is well known that the problem of the cosmological constant appears in a new light in unimodular gravity. In particular, the zero-momentum piece of the potential does not automatically produce a corresponding cosmological constant. Here we show that quantum corrections do not renormalize the classical value of this observable. 

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