43 citations · 161 across the 16 of their papers we have counts for
17 papers
An improved auxiliary boson method for quantum dots with finite Coulomb interaction U
Juan Pablo Ramos-Andrade, Patricia Almeida, Ana María Calle +1
In this work, we present an improved version of the formulation of the four auxiliary bosons originally proposed by Kotliar and Ruckenstein, adapted to describe a quantum dot in th…
Shot noise signatures of Majorana-assisted transport in an Aharonov-Bohm interferometer
Ignacio Román-Pérez, Juan Pablo Ramos-Andrade, Pedro Orellana +1
In this work, we investigate the finite-bias charge current, shot noise, and Fano factor in an Aharonov-Bohm interferometer composed of two parallel quantum dots, each side-coupled…
Phase-controlled quasi-bound states in the continuum and thermoelectric enhancement in Majorana-quantum-dot nanostructures
Alejandro Garrido, David Zambrano, Hishan Farfán-Bachiloglu +3
We investigate how the interplay between Majorana zero modes (MZMs) and bound states in the continuum (BICs) governs the electronic thermoelectric response of a crossbar-shaped qua…
Effects of random vacancies on the spin-dependent thermoelectric properties of silicene nanoribbon
D. Zambrano, C. D. Núñez, P. A. Orellana +2
The spin-dependent thermoelectric properties of silicene nanoribbon heterostructures are investigated, in which the central conductor contains a random distribution of vacancies an…
Bound States in the Continuum in a Double Whispering Gallery Resonator
Alexis R. Legón, M. Ahumada, J. P. Ramos-Andrade +2
In this work, we investigate the single-photon transport through two whispering gallery resonators (WGRs) coupled to a one-dimensional waveguide. Using Green's function formalism,…
Fano-Rashba effect in the presence of Majorana bound states
B. Grez, J. P. Ramos-Andrade, P. A. Orellana
In this paper, we investigate the influence of Majorana bound states on the Fano-Rashba effect in a two-channel Fano-Anderson model. Employing Green's function formalism and the eq…
Bound states in the continuum and Majorana zero modes in a double quantum dot interferometer: Ghost-Fano Majorana effect
A. P. Garrido, D. Zambrano, J. P. Ramos-Andrade +1
We investigate the transport properties through a nanostructure composed of parallel double quantum dots coupled to two normal contacts. Additionally, each quantum dot is connected…
Bound states in the continuum in a two-channel Fano-Anderson model
Bastián Grez, Juan Pablo Ramos-Andrade, Vladimir Juričić +1
In this article, we study the formation of the bound states in the continuum (BICs) in a two-channel Fano-Anderson model. We employ the Green's function formalism, together with th…
Kondo effect in a quantum dot embedded between topological superconductors
G. A. Lara, J. P. Ramos-Andrade, D. Zambrano +1
In this article, we study the quantum transport through a single-level quantum-dot in Kondo regime, coupled to current leads and embedded between two one-dimensional topological su…
Josephson and persistent currents in a quantum ring between topological superconductors
F. G. Medina, J. P. Ramos-Andrade, L. Rosales +1
In this work, we investigate the spectra in an Aharonov-Bohm quantum-ring interferometer forming a Josephson junction between two topological superconductors (TSC) nanowires. The T…
Fingerprints of Majorana bound states in quantum-rings
F. G. Medina, J. P. Ramos-Andrade, L. Rosales +1
In this work, we investigate a quantum-ring coupled to a topological superconductor, hosting Majorana bound states (MBSs). We study the MBSs effects over the spectrum and persisten…
Majorana bound state in the continuum: Coupling between Majorana bound state and quantum dot mediated by continuum
J. P. Ramos-Andrade, P. A. Orellana, E. Vernek
In this work, we consider a single-level quantum dot (QD) and a Majorana bound state (MBS) placed at the end of a topological superconducting nanowire (TSW). Both are coupled to th…
Fano-Majorana effect and bound states in the continuum on a crossbar-shaped quantum dot hybrid structure
J. P. Ramos-Andrade, D. Zambrano, P. A. Orellana
We investigate transport properties through a crossbar-shaped structure formed by a quantum dot (QD) coupled to two normal leads and embedded between two one-dimensional topologica…
Bound states in the continuum poisoned by Majorana fermions
D. Zambrano, J. P. Ramos-Andrade, P. A. Orellana
In this work, we study the bound states in the continuum (BICs) in a system formed by a triple quantum dot array embedded between two one-dimensional topological superconductors, b…
Detecting coupling of Majorana bound states with an Aharonov-Bohm interferometer
J. P. Ramos-Andrade, P. A. Orellana, S. E. Ulloa
We study the transport properties of an interferometer composed by a quantum dot (QD) coupled with two normal leads and two one-dimensional topological superconductor nanowires (TN…
Spin-Seebeck effect and spin polarization in a multiple quantum dot molecule
J. P. Ramos-Andrade, F. J. Peña, A. González +2
In this work, we study the conductance and the thermoelectric properties of a quantum dot embedded between two metallic leads with a side-coupled triple quantum dot molecule under…
Thermoelectric transport through Majorana bound states and violation of Wiedemann-Franz law
J. P. Ramos-Andrade, O. Ávalos-Ovando, P. A. Orellana +1
We study features of the thermoelectric transport through a Kitaev chain hosting Majorana bound states (MBS) at its ends. We describe the behavior of the Seebeck coefficient and th…