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Variational method for excited states from supersymmetric techniques
(2003-11-01)
We suggest a method for constructing trial eigenfunctions for excited states to be used in the variational method. This method is a generalization of the one that uses a superpotential to obtain the trial functions for the ...
Variational method for excited states from supersymmetric techniques
(2003-11-01)
We suggest a method for constructing trial eigenfunctions for excited states to be used in the variational method. This method is a generalization of the one that uses a superpotential to obtain the trial functions for the ...
Existence of ground states for a one-dimensional relativistic schrödinger equation
(American Institute of Physics, 2012-06)
Relativistic Schrödinger equation with a nonlinear potential interaction describes the dynamics of a particle, with rest mass m, travelling to a significant fraction |v| < 1 of the light speed c = 1. At first, we deal with ...
Control of the persistent currents in two interacting quantum rings through the Coulomb interaction and interring tunneling
(AMER PHYSICAL SOC, 2008)
The persistent current in two vertically coupled quantum rings containing few electrons is studied. We find that the Coulomb interaction between the rings in the absence of tunneling affects the persistent current in each ...
Upper bounds for the ground-state second-order Perturbation Theory
(Instituto Químico de Sudáfrica, 1982-01-13)
A family of upper bounds for the ground-state second-order
energy, derived from the Perturbation Theory, has been
obtained. The bounds have been evaluated for the static
electric dipole polarizability of the hydrogen atom.
Magnetization ground state and reversal modes of magnetic nanotori
(2016)
In this work, and by means of micromagnetic simulations, we study the magnetic properties of toroidal nanomagnets. The magnetization ground state for different values of the aspect ratio between the toroidal and polar radii ...
Ground state of the impurity Anderson model revisited: A projector operator solution
(Wiley VCH Verlag, 2015-02)
By means of a projector operator formalism we study the ground state properties of the Anderson Impurity Hamiltonian. The non-perturbative treatment of the model agrees with the previous one, obtained by Inagaki [Prog. ...