612 citations
- Centro Brasileiro de Pesquisas FísicasBR14 papers
- Universidade de São PauloBR11 papers
- Instituto Tecnológico de AeronáuticaBR10 papers
- Universidade Estadual Paulista (Unesp)BR9 papers
- Universidade Federal do Rio de JaneiroBR9 papers
- Universidade do Estado do Rio de JaneiroBR8 papers
- University of CoimbraPT7 papers
- Centre National de la Recherche ScientifiqueFR6 papers
- Instituto Nacional de Matemática Pura e AplicadaBR4 papers
- Trinity College DublinIE4 papers
- Universidade Estadual de Campinas (UNICAMP)BR4 papers
- University of California, IrvineUS4 papers
18 papers · 1 filter
Vortex and gap generation in gauge models of graphene
O. Oliveira, C. E. Cordeiro, A. Delfino +2
Effective quantum field theoretical continuum models for graphene are investigated. The models include a complex scalar field and a vector gauge field. Different gauge theories are…
Dynamical gap generation in graphene nanoribbons: An effective relativistic field theoretical model
A. J. Chaves, G. D. Lima, W. de Paula +4
We show that the assumption of a nontrivial zero band gap for a graphene sheet within an effective relativistic field theoretical model description of interacting Dirac electrons o…
Matter-wave 2D solitons in crossed linear and nonlinear optical lattices
H. L. F. da Luz, F. Kh. Abdullaev, A. Gammal +2
It is demonstrated the existence of multidimensional matter-wave solitons in a crossed optical lattice (OL) with linear OL in the direction and nonlinear OL (NOL) in the di…
Blow-up phenomena for scalar-flat metrics on manifolds with boundary
Sergio Almaraz
Let (M,g) be a compact n-dimensional Riemannian manifold with boundary. This article is concerned with the set of scalar-flat metrics on M which are in the conformal class of g and…
Enhancement of sub-barrier fusion of two-neutron halo nuclei
P. R. S. Gomes, L. F. Canto, J. Lubian +1
The tunneling of composite systems, where breakup may occur during the barrier penetration process is considered in connection with the fusion of halo-like radioactive, neutron- an…
Fermionic van Hemmen Spin Glass Model with a Transverse Field
S. G. Magalhaes, F. M. Zimmer, C. V. Morais
In the present work it is studied the fermionic van Hemmen model for the spin glass (SG) with a transverse magnetic field . In this model, the spin operators are written as a bi…