Zobrazeno 1 - 10
of 1 180
pro vyhledávání: '"Joao, S."'
We study electromagnetic radiation reaction on a charged particle around a weakly magnetized Kerr black hole. We solve numerically the Teukolsky equation to find energy fluxes in electromagnetic radiation at the horizon and at spatial infinity. We al
Externí odkaz:
http://arxiv.org/abs/2409.17225
We study radiation from charged particles in circular motion around a Schwarzschild black hole immersed in an asymptotically uniform magnetic field. In curved space, the radiation reaction force is described by the DeWitt-Brehme equation, which inclu
Externí odkaz:
http://arxiv.org/abs/2404.02195
Weyl nodal loop semimetals are gapless topological phases that, unlike their insulator counterparts, may be unstable to small perturbations that respect their topology-protecting symmetries. Here, we analyze a clean system perturbed by chiral off-dia
Externí odkaz:
http://arxiv.org/abs/2403.05298
Autor:
Alves, José F., Matias, João S.
Classic results by L.-S. Young show that the decay of correlations for systems that admit inducing schemes can be obtained through the recurrence rates of the inducing scheme. Reciprocal results were obtained for non-invertible systems (without contr
Externí odkaz:
http://arxiv.org/abs/2401.06024
Autor:
Veiga, H. P., João, S. M., Pinho, J. M. Alendouro, Pires, J. P. Santos, Lopes, J. M. Viana Parente
Charge transport in disordered two-dimensional (2D) systems showcases a myriad of unique phenomenologies that highlight different aspects of the underlying quantum dynamics. Electrons in such systems undergo a crossover from ballistic propagation to
Externí odkaz:
http://arxiv.org/abs/2311.03983
Recently, there has been significant interest in harnessing hot carriers generated from the decay of localized surface plasmons in metallic nanoparticles for applications in photocatalysis, photovoltaics and sensing. In this work, we present an atomi
Externí odkaz:
http://arxiv.org/abs/2308.03957
Autor:
Silva, Joao S., Castro, Eduardo V., Mondaini, Rubem, Vozmediano, María A. H., López-Sancho, M. Pilar
Publikováno v:
Phys. Rev. B 109, 125145 (2024)
We analyze the influence of disorder and strong correlations on the topology in two dimensional Chern insulators. A mean field calculation in the half-filled Haldane model with extended Hubbard interactions and Anderson disorder shows that disorder f
Externí odkaz:
http://arxiv.org/abs/2307.16053
Anonymity networks like Tor significantly enhance online privacy but are vulnerable to correlation attacks by state-level adversaries. While covert channels encapsulated in media protocols, particularly WebRTC-based encapsulation, have demonstrated e
Externí odkaz:
http://arxiv.org/abs/2303.17544
We study electromagnetic radiation reaction in curved space and the dynamics of radiating charged particles. The equation of motion for such particles is the DeWitt-Brehme equation, and it contains a particularly complicated, non-local, tail term. It
Externí odkaz:
http://arxiv.org/abs/2303.03411
Autor:
Paolo Colangelo, Marika Di Civita, Carlos M. Bento, Paolo Franchini, Axel Meyer, Nadiya Orel, Luis C. B. G. das Neves, Fernando C. Mulandane, Joao S. Almeida, Gabriele Senczuk, Fabio Pilla, Simone Sabatelli
Publikováno v:
BMC Ecology and Evolution, Vol 24, Iss 1, Pp 1-14 (2024)
Abstract The African buffalo, Syncerus caffer, is a key species in African ecosystems. Like other large herbivores, it plays a fundamental role in its habitat acting as an ecosystem engineer. Over the last few centuries, African buffalo populations h
Externí odkaz:
https://doaj.org/article/b56d32e4c8ca4d2381d84df858ee2c83
