Semiconductor-Quantum-Dot Modulator for Cryogenic Operation of Quantum Circuitry
Mark Hogg, Matthew Gregory House, Prasanna Pakkiam, Michelle Yvonne Simmons · Physical Review Applied · 2023
Quantum computing devices have the potential to solve problems that are beyond even the most powerful modern supercomputers. Most quantum hardware operates at temperatures near absolute zero, but controlling a quantum computer at cryogenic temperatures using signals propagating from room temperature becomes infeasible for large-scale processors. The authors explore a device that allows control signals to be generated on-chip at cryogenic temperatures, potentially mitigating this cryogenic bottleneck. Their device is fabricated in silicon using established technologies for quantum processors, providing a pathway towards a hybrid quantum-classical integrated circuit.