This title appears in the Scientific Report :
2023
Physical Integration of Cryogenic Control Electronics Togetherwith a Spin Qubit Sample at mK Temperatures
Physical Integration of Cryogenic Control Electronics Togetherwith a Spin Qubit Sample at mK Temperatures
A universal quantum computer requires the control and read out of millions of physical quantum bits (qubits). Due to wiring limitation in current state-of-the-art dilution refrigerators scaling up to millions of qubits with room-temperature electronics is challenging. Integrated Circuits (ICs) opera...
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Personal Name(s): | Schreckenberg, Lea (Corresponding author) |
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Otten, Rene / Vliex, Patrick / van Waasen, Stefan | |
Contributing Institute: |
JARA Institut Quanteninformation; PGI-11 Zentralinstitut für Elektronik; ZEA-2 |
Imprint: |
2023
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Conference: | DPG Frühjahrstagung SKM, Dresden (Germany), 2023-03-26 - 2023-03-31 |
Document Type: |
Conference Presentation |
Research Program: |
Quantum-Computer Control Systems and Cryoelectronics |
Publikationsportal JuSER |
A universal quantum computer requires the control and read out of millions of physical quantum bits (qubits). Due to wiring limitation in current state-of-the-art dilution refrigerators scaling up to millions of qubits with room-temperature electronics is challenging. Integrated Circuits (ICs) operating next to the qubits will help solving this scalability problem but require novel approaches for cryogenic circuits. This talk will focus on the physical design layer of the integration of a custom-designed 65nm CMOS low-power digital to analog converter(DAC) for qubit bias together with a spin qubit sample. In total, eight DAC channels are integrated at the mixing chamber stage of a dilution refrigerator and are operated at milli-kelvin temperatures. Additionally, engineering aspects regarding the sample space setup, cryostat wiring, and the tight density are pointed out. |