17 citations · 61 across the 11 of their papers we have counts for
11 papers
Bound states in and out of the continuum in nanoribbons with wider sections: A novel recursive S-matrix method
Ricardo Y. Díaz, Carlos Ramírez
We report a novel method to find bound states in general tight-binding Hamiltonians with semi-infinite leads. The method is based on the recursive S-matrix method, which allows us…
Inflationary evolution in quantum cosmology from FRLW supersymmetric models
N. E. Martínez-Pérez, C. Ramírez, V. Vázquez-Báez
We consider inflationary scenarios for FRLW supersymetric models with a scalar field, whose Wheeler-DeWitt equation has analytic solutions. Following previous work of the authors,…
Landauer conductance in the complex domain: A path to find closed-form solutions
Mauricio J. Rodríguez, Bryan D. Gomez, Carlos Ramírez
The Landauer formula allows us to describe theoretically the conductance in terms of the transmission function in a mesoscopic system. We propose a general method to evaluate the t…
Solving Schrödinger Equation with Scattering Matrices. Bound states of Lennard-Jones Potential
Carlos Ramírez, Fernanda H. González, César G. Galván
This paper presents an accurate highly efficient method for solving the bound states in the one-dimensional Schrödinger equation with an arbitrary potential. We show that the bound…
On the lagrangian description of dissipative systems
N. E. Martínez-Pérez, C. Ramírez
We consider the Lagrangian formulation with duplicated variables of dissipative mechanical systems. The application of Noether theorem leads to physical observable quantities which…
Quantum cosmology of quadratic f(R) theories with a FRW metric
V. Vázquez-Báez, C. Ramírez
We study the quantum cosmology of a quadratic theory with a FRW metric, via one of its equivalent Horndeski type actions, where the dynamics of the scalar field is induced.…