Combined Exchange-Measurement Based Qubit Operations in Spin Qubits

Alternative approaches to gate based double-quantum dot spin-qubit quantum operations by measurements has been investigated by combining exchange-interaction with fast qubit measurements. These approaches are evaluated with respect their implications for spin-based quantum computing by their gate speed and fidelity, as well as robustness to spin-state leakage, and applications to calibration. Dependance on of the number of physical qubits and compatibility with stabiliser codes are also considered.