Sign inversion in the lateral van der Waals force

ECM Nogueira, L Queiroz, DT Alves - Physical Review A, 2022 - APS
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 particle …

Curvature-induced repulsive effect on the lateral Casimir-Polder–van der Waals force

DT Alves, L Queiroz, ECM Nogueira, NMR Peres - Physical Review A, 2023 - APS
Recently, it was shown that when a single protuberance is introduced on an infinite flat
conducting surface, an anisotropic particle, kept constrained to move on a plane above the …

Regimes of the lateral van der Waals force in the presence of dielectrics

L Queiroz, ECM Nogueira, DT Alves - Physical Review A, 2021 - APS
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 …

Probing topological phase transitions via quantum reflection in the graphene family materials

PP Abrantes, TP Cysne, D Szilard, FSS Rosa… - Physical Review B, 2021 - APS
We theoretically investigate the quantum reflection of different atoms by two-dimensional
(2D) materials of the graphene family (silicene, germanene, and stanene), subjected to an …

Sign inversion in the lateral van der Waals force between an anisotropic particle and a plane with a hemispherical protuberance: an exact calculation

L Queiroz, ECM Nogueira… - Journal of Physics A …, 2023 - iopscience.iop.org
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 R …

Time-Dependent Effective Hamiltonians for Light–Matter Interactions

AS Santos, PH Pereira, PP Abrantes, C Farina… - Entropy, 2024 - mdpi.com
In this paper, we present a systematic approach to building useful time-dependent effective
Hamiltonians in molecular quantum electrodynamics. The method is based on considering …

Introducing corrugated surfaces in electrostatic problems via a perturbative approach

AP Costa, L Queiroz, E Nogueira… - American Journal of …, 2023 - pubs.aip.org
In electromagnetism courses, students often solve Poisson's equation for a point charge in
the presence of an infinitely large perfectly conducting planar surface, usually by the method …

Influence of retardation and dispersive surfaces on the regimes of the lateral Casimir-Polder force

L Queiroz - Physical Review A, 2024 - APS
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 …

[PDF][PDF] Repulsive lateral van der Waals force

E Nogueira, L Queiroz, DT Alves - arXiv preprint arXiv:2110.12027, 2021 - academia.edu
In the literature, it has been shown that between a neutral polarizable particle and a
conducting plane surface arises an attractive dispersive force. A change on this geometry …

Introducing corrugated surfaces in electromagnetism problems via perturbative approach

AP da Costa, L Queiroz, E Nogueira… - arXiv preprint arXiv …, 2021 - arxiv.org
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 …