23 citations
- Western UniversityCA65 papers
- Universidade de São PauloBR22 papers
- Ollscoil na Gaillimhe – University of GalwayIE6 papers
- Institute of Space TechnologyPK5 papers
- Pakistan Academy of SciencesPK3 papers
- University of DhakaBD3 papers
- University of OttawaCA3 papers
- University of SaskatchewanCA3 papers
- Ames Research CenterUS2 papers
- California Institute of TechnologyUS2 papers
- Dublin Institute For Advanced StudiesIE2 papers
- Institut de Recherche en Astrophysique et PlanétologieFR2 papers
50 papers · 1 filter
Equivalence of first and second order formulations of the Einstein-Hilbert theory
F. T. Brandt, J. Frenkel, S. Martins-Filho +1
We derive a general relation between the background effective actions, which directly proves that the two formulations of the Einstein-Hilbert theory with background fields are equ…
A Renormalizable Model of Quantized Gravitational and Matter Fields
D. G. C. McKeon, F. T. Brandt, J. Frenkel +1
A Lagrange multiplier field can be used to restrict radiative corrections to the Einstein-Hilbert action to one-loop order. This result is employed to show that it is possible to c…
Renormalization of the Einstein-Cartan Theory in First-Order Form
F. T. Brandt, J. Frenkel, S. Martins-Filho +1
We examine the Einstein-Cartan (EC) theory in first-order form, which has a diffeomorphism as well as a local Lorentz invariance. We study the renormalizability of this theory in t…
Quantization of Einstein-Cartan theory in the first order form
F. T. Brandt, J. Frenkel, S. Martins-Filho +1
We consider the Einstein-Cartan theory with the tetrad and spin connection taken as being independent fields. Diffeomorphism invariance and local Lorentz invari…
Field redefinition invariant Lagrange multiplier formalism with gauge symmetries
D. G. C. McKeon, F. T. Brandt, S. Martins-Filho
It has been shown that by using a Lagrange multiplier field to ensure that the classical equations of motion are satisfied, radiative effects beyond one-loop order are eliminated.…
Thermal quantum gravity in a general background gauge
F. T. Brandt, J. Frenkel, D. G. C. McKeon +1
We calculate in a general background gauge, to one-loop order, the leading logarithmic contribution from the graviton self-energy at finite temperature , extending a previous an…