42 citations · 125 across the 11 of their papers we have counts for
10 papers · 1 filter
Spin-cQED with bulk germanium spin qubits
A. -F. Kalo, E. A. Rodríguez-Mena, J. C. Abadillo-Uriel +2
Unstrained bulk germanium is a particularly attractive material for circuit quantum electrodynamics with spins (spin-cQED). We show, through systematic modeling and comparison with…
Sweet-spot protection of hole spins in sparse arrays via spin-dependent magnetotunneling
Esteban A. Rodríguez-Mena, Biel Martínez, Ahmad Fouad Kalo +2
Recent advances in the scaling of spin qubits have led to the development of sparse architectures where spin qubits are distributed across multiple quantum dots. This distributed a…
Spin precession and laser-induced spin-polarized photocurrents
Esteban A. Rodríguez-Mena, Matías Berdakin, Luis E. F. Foa Torres
Controlling spin currents in topological insulators (TIs) is crucial for spintronics but challenged by the robustness of their chiral edge states, which impedes the spin manipulati…
Dressed basis sets for the modeling of exchange interactions in double quantum dots
Mauricio J. Rodríguez, Esteban A. Rodríguez-Mena, Ahmad Fouad Kalo +1
We discuss the microscopic modeling of exchange interactions between double semiconductor quantum dots used as spin qubits. Starting from a reference full configuration interaction…
A two-dimensional 10-qubit array in germanium with robust and localised qubit control
Valentin John, Cécile X. Yu, Barnaby van Straaten +10
Quantum computers require the systematic operation of qubits with high fidelity. For holes in germanium, the spin-orbit interaction allows for \textit{in situ} electric fast and hi…
Strain engineering in Ge/GeSi spin qubits heterostructures
Lorenzo Mauro, Esteban A. Rodríguez-Mena, Biel Martinez +1
The heavy-holes in Ge/GeSi heterostructures show highly anisotropic gyromagnetic response with in-plane -factors and out-of-plane -factor $g_z^*\gtrsi…
Geometry of the dephasing sweet spots of spin-orbit qubits
Lorenzo Mauro, Esteban A. Rodríguez-Mena, Marion Bassi +2
The dephasing time of spin-orbit qubits is limited by the coupling with electrical and charge noise. However, there may exist "dephasing sweet spots" where the qubit decouples (to…
Linear-in-momentum spin orbit interactions in planar Ge/GeSi heterostructures and spin qubits
Esteban A. Rodríguez-Mena, José Carlos Abadillo-Uriel, Gaëtan Veste +4
We investigate the existence of linear-in-momentum spin-orbit interactions in the valence band of Ge/GeSi heterostructures using an atomistic tight-binding method. We show that sym…
Hole spin manipulation in inhomogeneous and non-separable electric fields
Biel Martinez, José Carlos Abadillo-Uriel, Esteban A. Rodríguez-Mena +1
The usual models for electrical spin manipulation in semiconductor quantum dots assume that the confinement potential is separable in the three spatial dimensions and that the AC d…
Spin-polarized tunable photocurrents
Matías Berdakin, Esteban A. Rodríguez-Mena, L. E. F. Foa Torres
Harnessing the unique features of topological materials for the development of a new generation of topological based devices is a challenge of paramount importance. Using Floquet s…