299 citations · 2k across the 90 of their papers we have counts for
90 papers
Quantum gravity in JNW spacetime
Enrique Alvarez, Jesus Anero
In this paper we study the behavior of a scalar field coupled to gravitons on the Janis-Newman-Winicour background, which somewhat interpolates between Minkowski and Schwarzschild…
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…
The fate of horizons under quantum corrections
Enrique Álvarez, Jesús Anero, Eduardo Velasco-Aja
We have studied a lagrangian in which the Einstein-Hilbert term is deformed by the Weyl cube operator, which is the lowest-dimension operator that is non-vanishing on shell and app…
Covariant techniques in Quantum Field Theory
Enrique Alvarez, Jesus Anero
In this paper some techniques useful to perform quantum field theory computations in a covariant manner are reviewed. In particular the background field gauge, the zeta function re…