304 citations
- Universidade de São PauloBR27 papers
- Universidade Estadual Paulista (Unesp)BR13 papers
- Centre National de la Recherche ScientifiqueFR10 papers
- Universidade Federal do ABCBR10 papers
- Universidade Federal do Rio de JaneiroBR10 papers
- Valongo ObservatoryBR9 papers
- Institut d'Astrophysique de ParisFR7 papers
- Laboratório Nacional de AstrofísicaBR7 papers
- Centro Brasileiro de Pesquisas FísicasBR6 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR6 papers
- Instituto de Astrofísica de CanariasES6 papers
- Tufts UniversityUS6 papers
13 papers · 1 filter
One-way propagation of light in Born-Infeld-like metamaterials
Vitorio A. De Lorenci, Jonas P. Pereira
We propose and investigate a family of nonlinear metamaterials in which light rays propagate just in one direction -- one-way propagation. Furthermore, we argue how such nonlinear…
Decoherence induced by long wavelength gravitons
V. A. De Lorenci, L. H. Ford
We discuss how a background bath of gravitons can induce decoherence of quantum systems. The mechanism is dephasing, the loss of phase coherence due to quantum geometry fluctuation…
CCD Photometry of NGC 2482 and Five Previously Unobserved Open Star Clusters
Kevin Krisciunas, Hektor Monteiro, Wilton Dias
We present BV and u'g'r'i' CCD photometry of the central region of NGC 2482. We also present BVu'g' CCD photometry of five clusters that have been poorly studied in the past: Rupre…
Local thermal behaviour of a massive scalar field near a reflecting wall
V. A. De Lorenci, L. G. Gomes, E. S. Moreira
The mean square fluctuation and the expectation value of the stress-energy-momentum tensor of a neutral massive scalar field at finite temperature are determined near an infinite p…
Field theoretic description of partially reflective surfaces
F. E. Barone, F. A. Barone
The issue of electric charges in interaction with partially reflective surfaces is addressed by means of field theoretic methods. It is proposed an enlarged Maxwell lagrangian, des…
A ring system detected around the Centaur (10199) Chariklo
F. Braga-Ribas, B. Sicardy, J. L. Ortiz +61
Until now, rings have been detected in the Solar System exclusively around the four giant planets. Here we report the discovery of the first minor-body ring system around the Centa…