Zobrazeno 1 - 10
of 103 929
pro vyhledávání: '"Viana AS"'
Autor:
Diniz, Kainã, Schoger, Tanja, Fonseca, Arthur L., Dutra, Rafael S., Ether Jr, Diney S., Ingold, Gert-Ludwig, Pinheiro, Felipe A., Viana, Nathan B., Neto, Paulo A. Maia
When microspheres are illuminated by tightly focused vortex beams, they can be trapped in a non-equilibrium steady state where they orbit around the optical axis. By using the Mie-Debye theory for optical tweezers, we demonstrate that the orbital per
Externí odkaz:
http://arxiv.org/abs/2409.03724
Nontwist area-preserving maps violate the twist condition at specific orbits, resulting in shearless invariant curves that prevent chaotic transport. Plasmas and fluids with nonmonotonic equilibrium profiles may be described using nontwist systems, w
Externí odkaz:
http://arxiv.org/abs/2409.00785
Autor:
Joao, Simao M., Petrovic, Marko D., Lopes, J. M. Viana Parente, Ferreira, Aires, Nikolic, Branislav K.
Quantum transport studies of spin-dependent phenomena in solids commonly employ the Kubo or Keldysh formulas for the steady-state density matrix in the linear-response regime. Its trace with operators of interest -- such as, spin density, spin curren
Externí odkaz:
http://arxiv.org/abs/2408.16611
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:
Gomes, Naomy Duarte, Pepino, Vinicius Marrara, Borges, Ben-Hur Viana, Magalhães, Daniel Varela, Napolitano, Reginaldo de Jesus, Torres, Manuel Alejandro Lefrán, Kondo, Jorge Douglas Massayuki, Marcassa, Luis Gustavo
In this study, we investigated Rydberg atom-based microwave electrometry using polarization spectroscopy in a room-temperature vapor cell. By measuring Autler-Townes splitting in the electromagnetically induced transparency (EIT) spectrum, we determi
Externí odkaz:
http://arxiv.org/abs/2407.20433
We introduce a second-order gyro-averaged extension to a guiding-center transport model for test particles subject to an $\mathbf{E}\times\mathbf{B}$ drift in a tokamak. Using this approximation, we numerically investigate the influence of finite Lar
Externí odkaz:
http://arxiv.org/abs/2407.15963
Autor:
Yang, Jiaying, Strandberg, Ingrid, Vivas-Viana, Alejandro, Gaikwad, Akshay, Castillo-Moreno, Claudia, Kockum, Anton Frisk, Ullah, Muhammad Asad, Munoz, Carlos Sanchez, Eriksson, Axel Martin, Gasparinetti, Simone
The ability to generate entangled states of light is a key primitive for quantum communication and distributed quantum computation. Continuously driven sources, including those based on spontaneous parametric downconversion, are usually probabilistic
Externí odkaz:
http://arxiv.org/abs/2407.07991
For several decades now it has been known that systems with shearless invariant tori, nontwist Hamiltonian systems, possess barriers to chaotic transport. These barriers are resilient to breakage under perturbation and therefore regions where they oc
Externí odkaz:
http://arxiv.org/abs/2406.19947
Autor:
Jenkins, Sydney, Vanderburg, Andrew, Bieryla, Allyson, Latham, David W., Badenas-Agusti, Mariona, Berlind, Perry, Blouin, Simon, Buchhave, Lars A., Calkins, Michael L., Esquerdo, Gilbert A., Viaña, Javier
Over a quarter of white dwarfs have photospheric metal pollution, which is evidence for recent accretion of exoplanetary material. While a wide range of mechanisms have been proposed to account for this pollution, there are currently few observationa
Externí odkaz:
http://arxiv.org/abs/2406.18638
Autor:
Neo, Giseldo da Silva, Moura, José Antão Beltrão, de Almeida, Hyggo Oliveira, Neo, Alana Viana Borges da Silva, Júnior, Olival de Gusmão Freitas
Publikováno v:
Proceedings of the 16th International Conference on Computer Supported Education (CSEDU), Volume 2, 2024, 51-62
User Stories record what must be built in projects that use agile practices. User Stories serve both to estimate effort, generally measured in Story Points, and to plan what should be done in a Sprint. Therefore, it is essential to train software eng
Externí odkaz:
http://arxiv.org/abs/2406.16259