13 citations · 45 across the 17 of their papers we have counts for
17 papers
Curvature effects on the regimes of the lateral van der Waals force
Alexandre P. Costa, Lucas Queiroz, Danilo T. Alves
Recently, it has been shown that, under the action of the lateral van der Waals (vdW) force due to a perfectly conducting corrugated plane, a neutral anisotropic polarizable partic…
The time-dependent quantum harmonic oscillator: a pedagogical approach via the Lewis-Riesenfeld dynamical invariant method
Stanley S. Coelho, Lucas Queiroz, Danilo T. Alves
In quantum mechanics courses, students often solve the Schrödinger equation for the harmonic oscillator with time-independent parameters. However, time-dependent quantum harmonic o…
Polarization and energy ellipsoids for an introductory visualization of tensors
Danilo T. Alves, Lucas Queiroz, Jeferson Danilo L. Silva
In ``The Feynman Lectures on Physics'' is discussed an introduction to tensors by means of the polarization tensor, including a way of ``visualizing'' this tensor via the energy el…
Influence of retardation and dispersive surfaces on the regimes of the lateral Casimir-Polder force
Lucas Queiroz
We investigate, by means of the scattering approach, the Casimir-Polder interaction between a neutral anisotropic polarizable particle and a corrugated surface made of a realistic…
The period of the limit cycle bifurcating from a persistent polycycle
David Marín, Lucas Queiroz, Jordi Villadelprat
We consider smooth families of planar polynomial vector fields , where is an open subset of , for which there is a hyperbolic polycycle that…
Squeezing equivalence of quantum harmonic oscillators under different frequency modulations
Stanley S. Coelho, Lucas Queiroz, Danilo T. Alves
The papers by Janszky and Adam [Phys. Rev. A {\bf 46}, 6091 (1992)] and Chen \textit{et al.} [Phys. Rev. Lett. {\bf 104}, 063002 (2010)] are examples of works where one can find th…
Exact solution of a time-dependent quantum harmonic oscillator with two frequency jumps via the Lewis-Riesenfeld dynamical invariant method
Stanley S. Coelho, Lucas Queiroz, Danilo T. Alves
Harmonic oscillators with multiple abrupt jumps in their frequencies have been investigated by several authors during the last decades. We investigate the dynamics of a quantum har…
Sign inversion in the lateral van der Waals force between an anisotropic particle and a plane with a hemispherical protuberance: an exact calculation
Lucas Queiroz, Edson C. M. Nogueira, Danilo T. Alves
We investigate the lateral van der Waals (vdW) force between an anisotropic polarizable particle and a perfectly conducting plane with a hemispherical protuberance with radius .…
Curvature-induced repulsive effect on the lateral Casimir-Polder--van der Waals force
Danilo T. Alves, Lucas Queiroz, Edson C. M. Nogueira +1
We consider a perfectly conducting infinite cylinder with radius , and investigate the Casimir-Polder (CP) and van der Waals (vdW) interactions with a neutral polarizable partic…
Introducing the notion of tensors through a variation of a Feynman didactic approach
Lucas Queiroz, Edson C. M. Nogueira, Danilo T. Alves
In one of his books [, vol. 2], Feynman presents a didactic approach to introduce basic ideas about tensors, using, as a first example, t…
Regimes of the lateral van der Waals force in the presence of dielectrics
Lucas Queiroz, Edson C. M. Nogueira, Danilo T. Alves
In a recent paper, it was shown that, under the action of the lateral van der Waals (vdW) force due to a perfectly conducting corrugated surface, a neutral anisotropic polarizable…
Analytic Nilpotent Centers on Center Manifolds
Claudio Pessoa, Lucas Queiroz
Consider analytical three-dimensional differential systems having a singular point at the origin such that its linear part is for some . The res…
Introducing corrugated surfaces in electromagnetism problems via perturbative approach
Alexandre P. da Costa, Lucas Queiroz, Edson C. M. Nogueira +1
Problems involving boundary conditions on corrugated surfaces are relevant to understand nature, since, at some scale, surfaces manifest corrugations that have to be taken into acc…
Nilpotent Centers in
Lucas Queiroz, Claudio Pessoa
Consider analytical three-dimensional differential systems having a singular point at the origin such that its linear part is for some . The res…
Sign inversion in the lateral van der Waals force
Edson C. M. Nogueira, Lucas Queiroz, Danilo T. Alves
We consider a single slight protuberance in a perfectly conducting plane, and investigate the van der Waals (vdW) interaction between this surface and a neutral polarizable particl…
Monodromic nilpotent singular points with odd Andreev number and the center problem
Claudio Pessoa, Lucas Queiroz
Given a nilpotent singular point of a planar vector field, its monodromy is associated with its Andreev number . The parity of determines whether the existence of an inverse…
Peak, valley and intermediate regimes in the lateral van der Waals force
Edson C. M. Nogueira, Lucas Queiroz, Danilo T. Alves
We study the van der Waals (vdW) interaction between a polarizable particle and a grounded conducting corrugated surface. For sinusoidal corrugations, one knows that, under the act…