24.8k citations
- Boston UniversityUS31 papers
- Instituto de Ciencia de Materiales de MadridES15 papers
- Universidade do PortoPT15 papers
- University of LisbonPT15 papers
- University of ManchesterGB14 papers
- Universidad Autónoma de MadridES12 papers
- University of OxfordGB12 papers
- Queen Mary University of LondonGB11 papers
- Radboud University NijmegenNL11 papers
- Universidade Federal do Rio de JaneiroBR11 papers
- University of CoimbraPT11 papers
- Indiana University BloomingtonUS10 papers
31 papers · 1 filter
Conformally flat sources for the Linet-Tian spacetime
Irene Brito, M. F. A. da Silva, Filipe C. Mena +1
We investigate the matching, across cylindrical surfaces, of static cylindrically symmetric conformally flat spacetimes with a cosmological constant , satisfying regularity cond…
Tensorial perturbations and stability of spherically symmetric d-dimensional black holes in string theory
Filipe Moura
We compute the tensorial perturbations to a general spherically symmetric metric in d dimensions with string-theoretical corrections quadratic in the Riemann tensor, from which we…
Exact solution for square-wave grating covered with graphene: Surface plasmon-polaritons in the THz range
N. M. R. Peres, Yuliy V. Bludov, A. Ferreira +1
We provide an analytical solution to the problem of scattering of electromagnetic radiation by a square-wave grating with a flat graphene sheet on top. We show that for deep groves…
Stable dark solitons in PT-symmetric dual-core waveguides
Yuliy V. Bludov, Vladimir V. Konotop, Boris A. Malomed
We construct dark solitons in the recently introduced model of the nonlinear dual-core coupler with the mutually balanced gain and loss applied to the two cores, which is a realiza…
A set of invariant quality factors measuring the deviation from the Kerr metric
Alfonso García-Parrado Gómez-Lobo, José M. M. Senovilla
A number of scalar invariant characterizations of the Kerr solution are presented. These characterizations come in the form of {\em quality factors} defined in stationary space-tim…
Extremal behavior of pMAX processes
Helena Ferreira, Marta Ferreira
The well-known M4 processes of Smith and Weissman are very flexible models for asymptotically dependent multivariate data. Extended M4 of Heffernan \emph{et al.} allows to also acc…