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Published in Physical Review D, 2018
First integral affine quantisation of a modified gravity theory.
Recommended citation: E. Frion and C.R. Almeida. "Affine quantization of the Brans-Dicke theory: Smooth bouncing and the equivalence between the Einstein and Jordan frames." Phys. Rev. D 99 (2019) 2, 023524. https://doi.org/10.1103/PhysRevD.99.023524
Published in Journal of Cosmology and Astroparticle Physics, 2019
Implementation of stochastic noise in a contracting universe.
Recommended citation: T. Miranda, E. Frion and D. Wands. "Stochastic collapse." JCAP 01 (2020) 026 https://doi.org/10.1088/1475-7516/2020/01/026
Published in Physical Review D, 2020
Generation of magnetic fields consistent with observations in a quantum bouncing model with dust.
Recommended citation: E. Frion, N. Pinto-Neto, S.D.P. Vitenti and S.E. Perez-Bergliaffa. "Primordial Magnetogenesis in a Bouncing Universe." Phys.Rev.D 101 (2020) 10, 103503 https://doi.org/10.1103/PhysRevD.101.103503
Published in Journal of Cosmology and Astroparticle Physics, 2020
Using redshift drifts effects to develop a probe of the gravitational coupling.
Recommended citation: L.Giani and E. Frion. "Testing the Equivalence Principle with strong lensing time delay variations." JCAP 09 (2020) 008 https://doi.org/10.1088/1475-7516/2020/09/008
Published in Classical and Quantum Gravity, 2021
Impact of spatial variation of the fine-structure constant and probe of Quintessence dark energy.
Recommended citation: L. Giani, E. Frion and O. Piattella. "Impact of inhomogeneities on slowly rolling quintessence: implications for the local variations of the fine-structure constant." Class.Quant.Grav. 38 (2021) 17, 175010 https://doi.org/10.1103/PhysRevD.99.023524
Published in Open Journal of Astrophysics, 2021
Impact of redshift drift on black hole shadow and photon rings. New probe of the gravitational coupling.
Recommended citation: E. Frion, L. Giani and T. Miranda. "Black hole shadow drift and photon ring frequency drift." Open J.Astrophys. 4 (2021) 1 https://astro.theoj.org/article/28209-black-hole-shadow-drift-and-photon-ring-frequency-drift
Published in Annals of Physics, 2021
Application of integral quantisation to the plane.
Recommended citation: R. Beneduci, E. Frion, J.-P. Gazeau and A. Perri. "Quantum formalism on the plane: POVM-Toeplitz quantization, Naimark theorem and linear polarization of the light." Annals Phys. 447 (2022) 169134 https://doi.org/10.1103/PhysRevD.99.023524
Published in Acta Polytechnica, 2021
Quantum entanglement and spin one-half coherent states in integral quantisation.
Recommended citation: R. Beneduci, E. Frion and J.-P. Gazeau. "Quantum description of angles in the plane." Acta Polytech. 62 (2022) 1, 8-15 https://doi.org/10.14311/AP.2022.62.0008
Published in , 2023
CMB and SN data prefer UDM models with slow transition. Can alleviate the Hubble tension.
Recommended citation: Emmanuel Frion, David Camarena, Leonardo Giani, Tays Miranda, Daniele Bertacca, Valerio Marra, Oliver F. Piattella. "Bayesian analysis of Unified Dark Matter models with fast transition: can they alleviate the $H_0$ tension?"
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Graduate course, Universidade Federal do Espírito Santo, Department of Physics, 2017
I was also a teaching assistant for three graduate students courses during my PhD. I prepared exercises and explained their solutions in a course of Quantum Mechanics administered by Júlio César Fabris. The course was for Master’s students. I also wrote lectures notes of two courses aimed at graduate students. The first set of notes was about quantum aspects of black holes, administered by Marc Casal. The second was about the \(3+1\) separation of General Relativity, administered by my supervisor Nelson Pinto-Neto.
Undergraduate course, Universidade Federal do Espírito Santo, Department of Physics, 2017
During my PhD, I served as a teaching assistant to Oliver Piattella for his Special Relativity course. The lectures were for undergraduates in their second year. I helped with the preparation of exercises and carefully explained the students how to solve them.