2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT388 papers
- Centro de Física Teórica de Partículas54 papers
- University of ViennaAT37 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- University of LisbonPT34 papers
- University of MississippiUS31 papers
- Universitat de ValènciaES27 papers
- California Institute of TechnologyUS25 papers
- University of CoimbraPT19 papers
- European Organization for Nuclear ResearchCH18 papers
- Instituto de TelecomunicaçõesPT18 papers
- Instituto Politécnico de LisboaPT17 papers
12 papers · 1 filter
Decidability of the Equivalence of Multi-Letter Quantum Finite Automata
Daowen Qiu, Xiangfu Zou, Lvzhou Li +1
Multi-letter {\it quantum finite automata} (QFAs) were a quantum variant of classical {\it one-way multi-head finite automata} (J. Hromkovič, Acta Informatica 19 (1983) 377-384), a…
New Bound States of Heavy Quarks at LHC and Tevatron
C. R. Das, C. D. Froggatt, L. V. Laperashvili +1
The present paper is based on the assumption that heavy quarks bound states exist in the Standard Model (SM). Considering New Bound States (NBS) of top-anti-top quarks (named T-bal…
Experimental Demonstration of a Structured Material with Extreme Effective Parameters at Microwaves
M. G. Silveirinha, C. A. Fernandes, J. R. Costa +1
Following our recent theoretical studies [M. G. Silveirinha, C. A. Fernandes, Phys. Rev. B, 78, 033108, 2008], it is experimentally verified that an array of crossed metallic wires…
A three-parameter neutrino mass matrix with maximal CP violation
W. Grimus, L. Lavoura
Using the seesaw mechanism, we construct a model for the light-neutrino Majorana mass matrix which yields trimaximal lepton mixing together with maximal CP violation and maximal at…
Simultaneous similarity and triangularization of sets of 2 by 2 matrices
Carlos A. A. Florentino
Let be a finite or infinite sequence of matrices with entries in an integral domain. We show that, except for a very special case, $\…
Meson-meson interactions and Regge propagators
Eef van Beveren, George Rupp
By a reformulation of the loop expansion in the Resonance-Spectrum-Expansion amplitude for meson-meson scattering, in terms of s-channel exchange of families of propagator modes, w…
A Cubical Set Approach to 2-Bundles with Connection and Wilson Surfaces
Joao Faria Martins, Roger Picken
In the context of non-abelian gerbes we define a cubical version of categorical group 2-bundles with connection over a smooth manifold. We define their two-dimensional parallel tra…
Groupoid sheaves as quantale sheaves
Pedro Resende
Several notions of sheaf on various types of quantale have been proposed and studied in the last twenty five years. It is fairly standard that for an involutive quantale Q satisfyi…
Second and third season QUaD CMB temperature and polarization power spectra
QUaD collaboration, C. Pryke, P. Ade +29
We report results from the second and third seasons of observation with the QUaD experiment. Angular power spectra of the Cosmic Microwave Background are derived for both temperatu…
Mean Curvature Flow of Spacelike Graphs
Guanghan Li, Isabel M. C. Salavessa
We prove the mean curvature flow of a spacelike graph in of a map from a closed Riemannian manifold with to a com…
Stochastic Differential Equations Driven by Fractional Brownian Motion and Standard Brownian Motion
João Guerra, David Nualart
We prove an existence and uniqueness theorem for solutions of multidimensional, time dependent, stochastic differential equations driven simultaneously by a multidimensional fracti…
Hamiltonian elliptic dynamics on symplectic 4-manifolds
Mario Bessa, Joao Lopes Dias
We consider C2 Hamiltonian functions on compact 4-dimensional symplectic manifolds to study elliptic dynamics of the Hamiltonian flow, namely the so-called Newhouse dichotomy. We s…