55 citations · 629 across the 39 of their papers we have counts for
12 papers · 1 filter
Exact classical limit of the quantum bouncer
Juan A. Cañas, J. Bernal, A. Martín-Ruiz
In this paper we develop a systematic approach to determine the classical limit of periodic quantum systems and applied it successfully to the problem of the quantum bouncer. It is…
Testing the equivalence principle with time-diffracted free-falling quantum particles
Juan A. Cañas, J. Bernal, A. Martín-Ruiz
The equivalence principle of gravity is examined at the quantum level using the diffraction in time of matter waves in two ways. First, we consider a quasi-monochromatic beam of pa…
Fano resonances induced by the topological magnetoelectric effect
L. A. Castro-Enriquez, A. Martín-Ruiz
We investigate the interaction between a topological insulator nanoparticle and a quantum dot in an impulse magnetic field. Since topological insulators are nonmagnetic, after the…
On the four-body problem in the Born-Oppenheimer approximation
C. A. Escobar, A. Martín-Ruiz
The quantum problem of four particles in (), with arbitrary masses and , interacting through an harmonic oscillator potential is consider…
Optical response of a topological-insulator--quantum-dot hybrid interacting with a probe electric field
L. A. Castro-Enriquez, L. F. Quezada, A. Martín-Ruiz
We study the interaction between a topological insulator nanoparticle and a quantum dot subject to an applied electric field. The electromagnetic response of the topological insula…
Quantum phase transition of two-level atoms interacting with a finite radiation field
L. F. Quezada, A. Martín-Ruiz, A. Frank
We introduce a group-theoretical extension of the Dicke model which describes an ensemble of two-level atoms interacting with a finite radiation field. The latter is described by a…
Interaction of a hydrogenlike ion with a planar topological insulator
A. Martín-Ruiz, L. F. Urrutia
An electric charge near the surface of a topological insulator (TI) induces an image magnetic monopole. Here we study the spectra of hydrogenlike ions near the surface of a planar…
The Polymer Bouncer
A. Martin-Ruiz, A. Frank, L. F. Urrutia
Polymer Quantization (PQ) is a background independent quantization scheme that is deployed in Loop Quantum Gravity. This framework leads to a new short-distance (discretized) struc…
Tunneling of Polymer Particles
A. Martín-Ruiz, E. Chan-López, A. Carbajal-Domínguez +1
In this paper we study the tunneling using a background independent (polymer) quantization scheme. We show that at low energies, for the tunneling through a single potential barrie…
Diffraction in Time of Polymer Particles
A. Martín-Ruiz
We study the quantum dynamics of a suddenly released beam of particles using a background independent (polymer) quantization scheme. We show that, in the first order of approximati…
Macroscopic quantum behaviour of periodic quantum systems
A. Martín-Ruiz, J. Bernal, Adrián Carbajal-Domínguez
In this paper we introduce a simple procedure for computing the macroscopic quantum behaviour of periodic quantum systems in the high energy regime. The macroscopic quantum coheren…
A simple mathematical formulation of the correspondence principle
J. Bernal, Alberto Martín-Ruiz, J. C. García-Melgarejo
In this paper we suggest a simple mathematical procedure to derive the classical probability density of quantum systems via Bohr's correspondence principle. Using Fourier expansion…