25 citations · 79 across the 8 of their papers we have counts for
9 papers
Quantum gates in coupled quantum dots controlled by coupling modulation
Alejandro D. Bendersky, Sergio S. Gomez, Rodolfo H. Romero
We studied the dynamics of a pair of single-electron double quantum dots (DQD) under longitudinal and transverse static magnetic fields and time-dependent harmonic modulation of th…
Implementing a Universal Set of Geometric Quantum Gates through Dressed-State assisted STA
M. Estefanía Rus, Alejandro Ferrón, Omar Osenda +1
Geometric quantum computation relies on the geometric phase that arises in adiabatic cyclic evolutions of non-degenerate quantum systems, enabling the design of robust quantum gate…
Efficient electron transfer in quantum dot chains controlled by a cubic detuning profile via shortcuts to adiabaticity
María E. Rus, Rodolfo H. Romero, Sergio S. Gomez
Long-distance fast and precise transfer of charge in semiconductor nanostructures is one of the goals for scalable electronic devices. We study theoretically the control of shuttli…
Fast optical control of a coded qubit in a triple quantum dot
Diego S. Acosta Coden, Sergio S. Gomez, Rodolfo H. Romero +2
In this work, we study strategies for the optical control, within the dipole approximation, of a qubit encoded in the three-electron states of a triple quantum dot. The system is d…
Optimal control of a charge qubit in a double quantum dot with a Coulomb impurity
Diego S. Acosta Coden, Rodolfo H. Romero, Alejandro Ferrón +1
We study the efficiency of modulated laser pulses to produce efficient and fast charge localization transitions in a two-electron double quantum dot. We use a configuration interac…
Impurity Effects in Two-Electron Coupled Quantum Dots: Entanglement Modulation
Diego S. Acosta Coden, Rodolfo H. Romero, Alejandro Ferrón +1
We present a detailed analysis of the electronic and optical properties of two-electron quantum dots with a two-dimensional Gaussian confinement potential. We study the effects of…
Transmission through a quantum dot molecule embedded in an Aharonov-Bohm interferometer
Daniel A. Lovey, Sergio S. Gomez, Rodolfo H. Romero
We study theoretically the transmission through a quantum dot molecule embedded in the arms of an Aharonov-Bohm four quantum dot ring threaded by a magnetic flux. The tunable molec…
Binding energy of an off-center shallow donor D- in a spherical quantum dot
Sergio S. Gomez, Rodolfo H. Romero
The binding energy of a negatively charged hydrogenic impurity with on- and off-center position in a spherical Gaussian quantum dot was calculated with the configuration interactio…
Few-electron semiconductor quantum dots with Gaussian confinement
Sergio S. Gomez, Rodolfo H. Romero
We have performed Hartree-Fock calculations of electronic structure of N \le 10 electrons in a quantum dot modeled with a confining Gaussian potential well. We discuss the conditio…