Abstract
The problem of the comological constant appears in a new light in Unimodular Gravity. In particular, the zero momentum piece of the potential (that is, the constant piece independent of the matter fields) does not automatically produce a cosmological constant proportional to it. The aim of this paper is to give some details on a calculation showing that quantum corrections do not renormalize the classical value of this observable.
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ArXiv ePrint: 1505.01995
To the memory of Raymond Stora, teacher and friend.
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Álvarez, E., González-Martín, S., Herrero-Valea, M. et al. Quantum corrections to unimodular gravity. J. High Energ. Phys. 2015, 78 (2015). https://doi.org/10.1007/JHEP08(2015)078
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DOI: https://doi.org/10.1007/JHEP08(2015)078