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quant-ph2026
Complete measurement of tunnel- and valley-coupling parameters in a silicon double quantum dot
Daniel J. King, Minyoung Kim, J. Reily +4
Tunneling is essential in the initialization, measurement, and control of quantum dot qubits. In silicon, such tunneling connects not only the qubit states but also valley minima i…
quant-ph2026
Direct measurement of the energy spectrum of a quantum dot qubit
J. Reily, Daniel J. King, Jonathan C. Marcks +8
The mapping between gate voltages applied to a double quantum dot, and the parameters of a Hubbard-like Hamiltonian, is of utmost importance for understanding and operating spin qu…
quant-ph2026
Omnidirectional shuttling to avoid valley excitations in Si/SiGe quantum wells
Róbert Németh, Vatsal K. Bandaru, Pedro Alves +7
Conveyor-mode shuttling is a key approach for implementing intermediate-range coupling between electron-spin qubits in quantum dots. Initial implementations are encouraging; howeve…