1.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S. P. Sorella2 profiles170 · h 33
- R. O. Ramos121 · h 34
- M. S. Guimaraes2 profiles73 · h 20
- D. Dudal66 · h 37
- V. Lemes2 profiles64 · h 17
- M. Capri58 · h 21
- D. G. Barci50 · h 13
- Anzhong Wang2 profiles47 · h 48
- M. D. Da Silva2 profiles37 · h 17
- R. Sobreiro2 profiles36 · h 19
- H. Verschelde33 · h 35
- H. P. de Oliveira31 · h 16
- Charles UniversityCZ1.9k papers
- Centre National de la Recherche ScientifiqueFR1.9k papers
- Centro Brasileiro de Pesquisas FísicasBR1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- Fermi National Accelerator LaboratoryUS1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.8k papers
- Panjab UniversityIN1.7k papers
- Tata Institute of Fundamental ResearchIN1.7k papers
- Brown UniversityUS1.7k papers
- University of DelhiIN1.7k papers
- University of Nebraska–LincolnUS1.7k papers
- Florida State UniversityUS1.7k papers
302 papers · 1 filter
A Lorentzian Gribov no-pole condition for Yang-Mills theory
M. S. Guimaraes
For over four decades, Gribov's no-pole condition has been almost exclusively explored in Euclidean space, where the elliptic nature of the Faddeev-Popov operator provides a clear…
Heterotic Warm Inflation
Arjun Berera, Heliudson Bernardo, Suddhasattwa Brahma +3
We propose a two-field model of warm inflation motivated by a heterotic string construction, involving an axion and a dilaton-like scalar field with non-trivial kinetic mixing. Gau…
Investigating the Araki-Uhlmann relative entropy between two coherent states in relativistic Quantum Field Theory
João G. A. Caribé, Marcelo S. Guimaraes, Itzhak Roditi +1
A numerical setup for investigating the Araki-Uhlmann relative entropy between two coherent states is presented for a scalar massive Quantum Field Theory in ()-dimensional Min…
Revisiting the Abelian super Stueckelberg model
M. A. L. Capri, D. R. Granado, I. F. Justo +1
The Abelian super Stueckelberg model (ASSM) in the Wess--Zumino (WZ) gauge is revisited, and the actual set of supersymmetric (SUSY) transformation is derived. In particular, we ve…
Warming up the Fibres
Dibya Chakraborty, Rudnei O. Ramos
Fibre inflationary models are constructed in type-IIB string flux compactification. These models have been shown to be in agreement with the cosmological observations under appropr…
Relative entropy of single-mode squeezed states in Quantum Field Theory
Marcelo S. Guimaraes, Itzhak Roditi, Silvio P. Sorella +1
Utilizing the Tomita-Takesaki modular theory, we derive a closed-form analytic expression for the Araki-Uhlmann relative entropy between a single-mode squeezed state and the vacuum…
A numerical analysis of Araki-Uhlmann relative entropy in Quantum Field Theory
Marcelo S. Guimaraes, Itzhak Roditi, Silvio P. Sorella +1
We numerically investigate the Araki-Uhlmann relative entropy in Quantum Field Theory, focusing on a free massive scalar field in 1+1-dimensional Minkowski spacetime. Using Tomita-…
A study of the spin 1 Unruh-De Witt detectors
F. M. Guedes, M. S. Guimaraes, I. Roditi +1
A study of the spin 1 Unruh-De Witt detectors interacting with a relativistic scalar quantum field is presented. After tracing out the field modes, the resulting density matrix for…
Numerical approach to the Bell-Clauser-Horne-Shimony-Holt inequality in quantum field theory
Philipe De Fabritiis, Marcelo S. Guimaraes, Itzhak Roditi +1
The Bell-CHSH (Clauser-Horne-Shimony-Holt) inequality in the vacuum state of a relativistic scalar quantum field is analyzed. Using Weyl operators built with smeared fields localiz…
Four-gluon vertex from the Curci-Ferrari model at one-loop order
Nahuel Barrios, Philipe De Fabritiis, Marcela Peláez
We compute the four-gluon vertex from the Curci-Ferrari model at one-loop order for a collinear configuration. Our results display a good agreement with the first lattice data for…
Dynamically massive linear covariant gauges: setup and first results
Giorgio Comitini, Tim De Meerleer, David Dudal +1
We discuss the possibility to obtain a massive Landau gauge, based on the local composite operator (LCO) effective action framework combined with the Zimmerman reduction of couplin…
Unruh-De Witt detectors, Bell-CHSH inequality and Tomita-Takesaki theory
Fillipe M. Guedes, Marcelo S. Guimaraes, Itzhak Roditi +1
The interaction between Unruh-De Witt spin detectors and a real scalar field is scrutinized by making use of the Tomita-Takesaki modular theory as applied to the Von Neumann…
Non-Hermitian Dirac theory from Lindbladian dynamics
Y. M. P. Gomes
This study investigates the intricate relationship between dissipative processes of open quantum systems and the non-Hermitian quantum field theory of relativistic fermionic system…
Using Weyl operators to study Mermin's inequalities in Quantum Field Theory
Philipe De Fabritiis, Fillipe M. Guedes, Marcelo S. Guimaraes +2
Mermin's inequalities are investigated in a Quantum Field Theory framework by using von Neumann algebras built with Weyl operators. We devise a general construction based on the To…
Weyl operators, Tomita-Takesaki theory, and Bell-Clauser-Horne-Shimony-Holt inequality violations
P. De Fabritiis, F. M. Guedes, M. S. Guimaraes +3
The violation of the Bell-CHSH inequality in the vacuum state of a relativistic free real scalar field is established by means of the Tomita-Takesaki construction and of the direct…
Maximal violation of the Bell-Clauser-Horne-Shimony-Holt inequality via bumpified Haar wavelets
David Dudal, Philipe De Fabritiis, Marcelo S. Guimaraes +2
We devise a general setup to investigate the violation of the Bell-CHSH inequality in the vacuum state in the context of Quantum Field Theory. We test the method with massless spin…
A BRST Characterization of the Broken Phase Observables of the Confining Complex Theory
R. L. P. G. Amaral, V. E. R. Lemes, O. S. Ventura +1
Some time ago we have introduced a route to provide confinement in the sense that particle excitations would appear from condensates of fields that do not have physical asymptotic…
BRST invariant formulation of the Bell-CHSH inequality in gauge field theories
David Dudal, Philipe De Fabritiis, Marcelo S. Guimaraes +2
A study of the Bell-CHSH inequality in gauge field theories is presented. By using the Kugo-Ojima analysis of the BRST charge cohomology in Fock space, the Bell-CHSH inequality is…
Mermin's inequalities in Quantum Field Theory
Philipe De Fabritiis, Itzhak Roditi, Silvio Paolo Sorella
A relativistic Quantum Field Theory framework is devised for Mermin's inequalities. By employing smeared Dirac spinor fields, we are able to introduce unitary operators which creat…
On the Feynman path integral formulation of the Bell-Clauser-Horne-Shimony-Holt inequality in Quantum Field Theory
Giovani Peruzzo, Silvio Paolo Sorella
By employing a free scalar Quantum Field Theory model previously introduced \cite{Peruzzo:2022pwv}, we attempt at formulating the Bell-CHSH inequality within the Feynman path integ…
Remarks on the Clauser-Horne-Shimony-Holt inequality in relativistic quantum field theory
Giovani Peruzzo, Silvio Paolo Sorella
We present an investigation of the inequality within a relativistic quantum field theory model built up with a pair of free massive scalar fields where, as it i…
Instantons and transseries of the Mathieu potential deformed by a -symmetry parameter
N. M. Alvarenga, E. Cavalcanti, C. A. Linhares +3
We investigate the non-perturbative effects of a deformation of the Mathieu differential equation consistent with symmetry. First, we develop a connection between th…
A BRST view of the spontaneous symmetry breaking
R. L. P. G. Amaral, V. E. R. Lemes, O. S. Ventura +1
After the phase transition of a Grand Unified Theory (GUT), its single coupling splits into the couplings of the basic interactions. On the other side, the measurement of the Weinb…
Quantum phase transitions in a bidimensional scalar field model
Gustavo O. Heymans, Marcus Benghi Pinto, Rudnei O. Ramos
We analyze the possible quantum phase transition patterns occurring within the scalar multi-field model at vanishing temperatures in -dimensions…