Building better next-gen Quantum Computers
Spectrum introduces QueSt, the first switch developed specifically for QCs, which provides ultrashort down to near-zero downtimes between switching events and negligible heat injection.
Poor scalability and high cost are among the main limiting factors for the development and deployment of quantum computers. Both problems are related to the bulkiness and multiplicity of the signal lines that run through the quantum computer. The large number of wires limits scalability and decreases the thermal stability of the quantum processing units (QPUs).
Through the innovative radiofrequency (RF) switch QueSt, Spectrum aims to increase the scalability and minimize problems related to heating, thus expediting the development of QCs.
Thanks to a new technological approach, the Quantum sUpErconducting SwiTch (QueSt) allows:
Network switch for QC

The Quantum sUpErconducting SwiTch (QueSt) will allow simultaneous control of multiple qubits through the same cable, working at higher operational frequencies unreachable with classical components, with shorter switching time and almost zero power dissipation.
QueSt makes it possible:
Those major characteristics, combined with the possibility of combining multiple switches inside the cryostat, could accelerate the utilization of QCs
The Quantum sUpErconducting SwiTch (QueSt) will allow simultaneous control of multiple qubits through the same cable, working at higher operational frequencies unreachable with classical components, with shorter switching time and almost zero power dissipation.
QueSt makes it possible:
Those major characteristics, combined with the possibility of combining multiple switches inside the cryostat, could accelerate the utilization of QCs.

Latest frontier in computation
If all technical hurdles are overcome, the Quantum Computer has a multitude of applications in different commercial sectors. From cybersecurity to drug development, from batteries to discovery of electronic materials, traffic optimization, artificial intelligence, etc.
An improvement in the cryogenic QC wiring system would have a major impact for:
which need efficient cabling in their Quantum Computers (QC) or High Performance Computers (HPC).
developing Quantum Computers and needing the latest generations of QC hardware to accelerate development.
working with high-frequency electronics and needing to reduce switch performance and power consumption.
interested in experimenting with cutting-edge components.
The SPECTRUM consortium members gathered in Pisa, Italy on 8th of September 2022 to have the first face-to-face meeting, thus marking the official launch the project. The meeting was organized...
We are pleased to announce that the next meeting of the consortium will be held in September in Pisa, Italy. The first physical progress meeting for Spectrum partner will be...
The dissemination campaign of European-funded project SPECTRUM is officially started through the launch of the project website. The website was specifically designed to provide in an accessible and user friendly...