Zobrazeno 1 - 10
of 429
pro vyhledávání: '"de Carvalho, C. A. A."'
A quasi-unidimensional one-electron double quantum dot is studied within the framework of Shannon informational entropy. Its confinement potential, which is described by an asymmetric harmonic-gaussian function, consists of two wells separated by a p
Externí odkaz:
http://arxiv.org/abs/2410.22538
We have considered a system consisting of two coupled quantum dots containing two electrons, i.e., two quantum dots next to each other with one excess electron each, subjected to an uniform magnetic field perpendicular to the quantum dots plane. The
Externí odkaz:
http://arxiv.org/abs/2211.05870
Autor:
Reis, D. M., de Carvalho, C. A. A.
We compute deviations from ideal gas behavior of the pressure, density, and Bose-Einstein condensation temperature of a relativistic gas of charged scalar bosons caused by the current-current interaction induced by electromagnetic quantum fluctuation
Externí odkaz:
http://arxiv.org/abs/2110.03488
We investigate the dispersion of a classical electromagnetic field in a relativistic ideal gas of charged bosons using scalar quantum electrodynamics at finite temperature and charge density. We derive the effective electromagnetic responses and the
Externí odkaz:
http://arxiv.org/abs/2009.05408
We show that a gas of relativistic electrons is a left-handed material at low frequencies by computing the effective electric permittivity and effective magnetic permeability that appear in Maxwell's equations in terms of the responses appearing in t
Externí odkaz:
http://arxiv.org/abs/2006.03129
We study the system consisted of two electrons in a quantum dot with a three-dimensional harmonic confinement potential under the effect of a magnetic field. Specifically, two different confinement conditions are considered, one isotropic three-dimen
Externí odkaz:
http://arxiv.org/abs/2004.09459
We have studied a system consisted of two coupled quantum dots containing two electrons subjected by a laser field. The effect of the laser is described by the dressed-band approach involving the concept of the conduction/valence effective mass, vali
Externí odkaz:
http://arxiv.org/abs/1812.01645
Autor:
Dellavechia de Carvalho, C., Marcolino Putti, G., Figueiredo Foresti, Y., Alves Ribeiro, F., Causin Andreossi, J., Ferraz de Campos, G., Papoti, M.
Publikováno v:
In Science et Sports March 2023 38(2):189-196
Autor:
Santos, L. O., Alencar, Amanda, Prazeres, I., Impens, François, de Carvalho, C. R., Faria, N. V. de Castro, Jalbert, Ginette
Publikováno v:
Phys. Rev. A 98, 052136 (2018)
We show that two-particle interferences can be used to probe the nuclear motion in a doubly-excited hydrogen molecule. The dissociation of molecular hydrogen by electron impact involves several decay channels, associated to different molecular rotati
Externí odkaz:
http://arxiv.org/abs/1808.08171
We describe electromagnetic propagation in a relativistic electron gas at finite temperatures and carrier densities. Using quantum electrodynamics at finite temperatures, we obtain electric and magnetic responses and general constitutive relations. R
Externí odkaz:
http://arxiv.org/abs/1711.07818