7 papers
Spin-cQED with bulk germanium spin qubits
A. -F. Kalo, E. A. RodrÃguez-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. RodrÃguez-Mena, Biel MartÃnez, 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…
Dressed basis sets for the modeling of exchange interactions in double quantum dots
Mauricio J. RodrÃguez, Esteban A. RodrÃguez-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…
Spin precession and laser-induced spin-polarized photocurrents
Esteban A. RodrÃguez-Mena, MatÃas 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…
Strain engineering in Ge/GeSi spin qubits heterostructures
Lorenzo Mauro, Esteban A. RodrÃguez-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…
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…