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- Universidade Federal de Minas GeraisBR48 papers
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16 papers · 1 filter
Vortex-crystal pattern in an anti-artificial spin ice system
C. I. L. de Araujo, R. C. Silva, I. R. B. Ribeiro +6
We have proposed in this work an original system composed by anti-dots nanopatterned in a ferromagnetic thin film, mimicking negatively the structure of an articial spin ice. In th…
Universal fluctuations in the growth of semiconductor thin films
R. A. L. Almeida, S. O. Ferreira, T. J. Oliveira +1
Scaling of surface fluctuations of polycrystalline CdTe/Si(100) films grown by hot wall epitaxy are studied. The growth exponent of surface roughness and the dynamic exponent of th…
An asymptotic formula for Goldbach's conjecture with monic polynomials in
Abílio Lemos, Anderson L. A. Araujo
In this paper, we consider , where $$θ= \sqrt{-k} \,\,\,\, \mbox{if}\;\;\;-k\not\equiv 1 \;(\mbox{mod}\;4)\,\,\,\,\mbox{or}\,\,\,\, θ=\frac{\sqrt{-k}+1}{2} \,\,\,\…
The ultraviolet and infrared perturbative finiteness of massless QED
O. M. Del Cima, D. H. T. Franco, O. Piguet
The massless QED is ultraviolet and infrared perturbatively finite, parity and infrared anomaly free to all orders in perturbation theory.
No one-loop gauge anomalies for a Lorentz-violating quantum electrodynamics: Evaluation of the three-photon vertex
Daniel H. T. Franco, André H. Gomes
Identification of the diagrams that can lead to gauge anomalies in the (minimal) Lorentz- and -violating extension of quantum electrodynamics reveals these are the electron se…
Finite one-loop radiative corrections in the Lorentz- and CPT-violating QED extension
Daniel H. T. Franco, André H. Gomes
We report on our current progress in the study of finite one-loop radiative corrections in the minimal Lorentz- and CPT-violating QED extension.