Zobrazeno 1 - 10
of 1 509
pro vyhledávání: '"A. A. Ozorio"'
Autor:
Leal, Bruno B., Lazarotto, Matheus J., Mugnaine, Michele, de Almeida, Alfredo M. Ozorio, Viana, Ricardo L., Caldas, Iberê L.
In nontwist systems, primary shearless curves act as barriers to chaotic transport. Surprisingly, the onset of secondary shearless curves has been reported in a few twist systems. Meanwhile, we found that, in twist systems, the onset of these seconda
Externí odkaz:
http://arxiv.org/abs/2408.10930
Autor:
Mugnaine, Michele, Leal, Bruno B., de Almeida, Alfredo M. Ozorio, Viana, Ricardo L., Caldas, Iberê L.
Isochronous islands in phase space emerge in twist Hamiltonian systems as a response to multiple resonant perturbations. According to the Poincar\'e-Birkhoff theorem, the number of islands depends on the system characteristics and the perturbation. W
Externí odkaz:
http://arxiv.org/abs/2312.12552
The mixed density operator for coarsegrained eigenlevels of a static Hamiltonian is represented in phase space by the spectral Wigner function, which has its peak on the corresponding classical energy shell. The action of trajectory segments along th
Externí odkaz:
http://arxiv.org/abs/2309.01178
Recent evidences show that heteroclinic bifurcations in magnetic islands may be caused by the amplitude variation of resonant magnetic perturbations in tokamaks. To investigate the onset of these bifurcations, we consider a large aspect ratio tokamak
Externí odkaz:
http://arxiv.org/abs/2308.00810
The Weyl-Wigner representation of quantum mechanics allows one to map the density operator in a function in phase space - the Wigner function - which acts like a probability distribution. In the context of statistical mechanics, this mapping makes th
Externí odkaz:
http://arxiv.org/abs/2307.16613
Publikováno v:
Phys.Rev.D 108 (2023) 10, 105001
We calculate the anomalous part of the polarization tensor of Dirac fermions in $2+1$ dimensions in the presence of impurities described by the scattering rate $\Gamma$ for arbitrary external frequency and momenta. We consider two different versions
Externí odkaz:
http://arxiv.org/abs/2305.11972
Publikováno v:
BMC Cancer, Vol 24, Iss 1, Pp 1-14 (2024)
Abstract Background Evaluation publications typically summarize the results of studies to demonstrate the effectiveness of an intervention, but little is shared concerning any changes implemented during the study. We present a process evaluation prot
Externí odkaz:
https://doaj.org/article/38f4cebd07fe40b894997ed429dc7674
Publikováno v:
Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas, Vol 19, Iss 2 (2024)
Resumo No presente artigo, propõe-se um diálogo entre registros históricos e arqueológicos da Amazônia, partindo da história indígena de longa duração do médio Solimões, em especial de seu último período associado às ocupações da Trad
Externí odkaz:
https://doaj.org/article/8064a02d710b495eb114a6ce67400231
Oscillations in the probability density of quantum transitions of the eigenstates of a chaotic Hamiltonian within classically narrow energy ranges have been shown to depend on closed compound orbits. These are formed by a pair of orbit segments, one
Externí odkaz:
http://arxiv.org/abs/2210.04078
Autor:
Edmilson Ozorio dos Santos, Tatiana Correa Carneiro-Lobo, Mateus Nobrega Aoki, Elena Levantini, Daniela Sanchez Bassères
Publikováno v:
Molecular Cancer, Vol 23, Iss 1, Pp 1-4 (2024)
Externí odkaz:
https://doaj.org/article/01f8e4c565324f45872bafc419505bbe