Simulation and design of quantum electronics and quantum processors
| German title: | Simulation und Design von Quantenelekronik und Quantenprozessoren | |
| Acronym: | SIGNAL | |
| Duration: | 1st November 2025 - 31st October 2028 | |
| Description: | The path to practical quantum computers (QC) requires a significant increase in the number of coupled or entangled quantum bits (qubits). In QCs based on superconducting (sl.) circuits, the number of high-frequency address and readout lines required scales with the number of qubits, thus limiting them. Research into suitable scalable interfaces between room temperature and cryogenic environments at a few mK is essential in order to be able to address the growing number of qubits in future QCs. The aim of the project is to develop scalable interfaces that enable a compact design, low heat input and noise, and high signal bandwidth for precise control and readout of the qubits. To this end, we will use and further develop technologies from optical communication, specifically optical fibers and cryogenic electro-optical modulators, to enable high signal bandwidths. Customized control and readout circuits based on low-power sl. digital electronics will serve as a direct link to the qubits to ensure their quantum mechanical functionality and enable high scalability through their close integration. In addition to the further development of the performance parameters and circuit concepts of the qubits, interfaces and interface circuits represent probably the most significant challenge for the scalability of the systems. Only the combination of sl. quantum technologies with photonic solutions enables innovative concepts to overcome these limitations. In addition, they allow, for example, the readout of very large cryogenic detector arrays or applications in neuromorphic computing. |
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| Funded by: | BMFTR | |
| Project sponsor: | VDI Technologiezentrum | |
| Funding code: | 13N17346 | |
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