Author

M. Veldhorst

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Preprint Oct 2026

Gate Dispersive Charge Detection in Ge/SiGe Quantum Dots

Spin qubits are an attractive platform for scalable quantum information processing, and recently, laterally gated quantum dots (QDs) in Ge heterostructures have emerged as a leading implementation of spin qubits. To date, RF single-hole transistors (SHT) and integrated superconducting resonators have been used for spin...

M. Tanvir, E. Sajadi, M. Veldhorst et al. · 0 citations

Preprint Oct 2026

Sparse qubit operation in a 6$\times$6 quantum dot array

Fault-tolerant quantum computation requires increasing the qubit count while maintaining high performance and connectivity. Semiconductor qubits have demonstrated high-fidelity operation, but growing the system size at sufficient connectivity remains challenging, such that scaling mainly occurred in one spatial directi...

A. С. Ivlev, H. L. Co, Damien R. Crielaard et al. · 0 citations

Preprint Sep 2026

QArray+: A physics-informed GPU-accelerated simulator for quantum dot arrays

QArray+, an extension of the QArray framework that incorporates gate-dependent tunnel coupling and a quantum open-system description of dissipative processes is introduced, which enables the unified simulation of coherent interdot charge-state hybridization and the non-equilibrium latching dynamics essential for traini...

Pranav Vaidhyanathan, Barnaby van Straaten, Alice Petrillo et al. · 0 citations