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The one-loop unimodular graviton propagator in any dimension
Jesus Anero, Carmelo P. Martin, Eduardo Velasco-Aja
For unimodular gravity, we work out, by using dimensional regularization, the complete one-loop correction to the graviton propagator in any space-time dimension. The computation i…
The quantum dynamics of Lagrange multipliers
Enrique Álvarez, Jesús Anero, Carmelo P. Martin +1
When implementing a non-linear constraint in quantum field theory by means of a Lagrange multiplier, , it is often the case that quantum dynamics induce quadratic and even hi…
Variations on the Goroff-Sagnotti operator
Enrique Álvarez, Jesus Anero, Eduardo Velasco-Aja
The effect of modifying General Relativity with the addition of some higher dimensional operators, generalizations of the Goroff-Sagnotti operator, is discussed. We determine in pa…
A Primer on Unimodular Gravity
Enrique Álvarez, Eduardo Velasco-Aja
This chapter provides an introduction to Unimodular Gravity both at the classical and quantum level, discussing the rôle it might play in the partial solution of the Cosmological C…