Project description

SPECTRUM is about to realize a revolutionary SuPErConducTing Radio-frequency switch for qUantuM technologies that we call QueSt (Quantum sUpErconducting SwiTch – QueSt).

The QueSt is poised to remarkably simplify the control over multiple qubits, reducing the incumbent issues within Quantum Processing. The switch will help not only minimize the power and heat dissipation of a QC, but also significantly lower related downtime, cost, and overall space occupied by the hardware.

The EU-funded SPECTRUM project will be an essential step towards the realization of powerful QCs with near-zero downtime and built in a miniaturized space.

Saves up to 75% of the IN/OUT lines, thus reducing the costs of the system

Saves up to 99% of the overall downtime

Saves up to 90% of the hardware volume

Reduces energy consumption to 5 kW/h (instead of about 2500 kW/h in supercomputers and 25 kW/h in the existing QC set-ups)




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Project goals and milestones

The overall roadmap to deliver the industrial grade QueSt superconducting technology is long. Within the SPECTRUM project, we aim to realize a technology prototype validated through a pilot study in a relevant environment. The development of QueSt is an opportunity to demonstrate the applicability of our field-effect superconducting technology in a market area of increasing importance, and to build a team that can tackle the typical problems that have to be faced until industrial production and commercialisation.


WP1 – Design, fabrication and optimization of QueSt

WP2 – Dynamic characterization in an industrial-relevant environment

WP3 – Dissemination & Communication

WP4 – Technology Transfer & Exploitation

WP5 – Coordination & Management


  • MS1 – Completion of the control FPGA-based control unit
  • MS2 – Completion of the QueSt prototype based on BCS superconductors
  • MS3 – Completion of the custom dilution cryostat
  • MS4 – Integration of QueSt with the control electronics and the custom-made cryostat
  • MS5 – Completion of the pilot with and industrial-grade QPU
  • MS6 – FTO analysis completed
  • MS7 – Business model validated and refined
  • MS8 – NewCo Foundation


Spectrum consortium

CNR Nano: CNR Nano, the project coordinator, carries out multidisciplinary research on the synthesis and fabrication of nanostructures and devices, on experimental and theoretical-computational studies of their properties and functionalities and their interfaces, as well as their integration in complex functional systems.

Chalmers University: Wallenberg Centre for Quantum Technology (CUT): is a 12-year SEK 1 billion research programme that aims at developing and securing Swedish expertise within the main areas of quantum technology: quantum computing and simulation, quantum communications and quantum sensing.

Intermodulation Products (IMP): IMP is dedicated to the research and development of measurement and analysis techniques for nonlinear physics and quantum technology. Our goal is to unlock the power of highly parallel, real-time digital processing and low-latency feedback, for academic and industrial research and development.

Bilfinger Noell GmbH (BNG): Bilfinger Noell is a Bilfinger SE company who mainly work in the engineering sector. BNG, having extensive experience in superconductivity, cryogenics, and magnet technology, implements innovative solutions for research, nuclear technology applications and instruments for meteorology.

Day One (DO) is a deep-tech Start-up Studio that helps researchers and start-ups take their innovations to the market. DO provides support in business development, validation and marketing as a partner within publicly funded projects.

Consiglio Nazionale delle Ricerche (CNR, coordinator, Italy)
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Chalmers University of Technology (CUT, Sweden)
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Intermodulation Products (IMP, Sweden)
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Bilfinger Noell GmbH (BNG, Germany)
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Day-One (DO, Italy)
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