SPECTRUM

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:

Low power dissipation

Control of multiple qubit configurations

Voltage control and compatibility with CMOS systems

High Switching Speed

A step towards accessible
quantum computing

The QueSt

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:

  • Saves up to 75% of the IN/OUT lines, thus reducing the overall costs of the system at the magnitude of millions of euros
  • Saves up to 99% of the overall downtime
  • Saves up to 90% of the hardware volume
  • Saves up to 5 times the energy consumed by a modern QC

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:

  • Saves up to 75% of the IN/OUT lines, thus reducing the overall costs of the system at the magnitude of millions of euros
  • Saves up to 99% of the overall downtime
  • Saves up to 90% of the hardware volume
  • Saves up to 5 times the energy consumed by a modern QC

Those major characteristics, combined with the possibility of combining multiple switches inside the cryostat, could accelerate the utilization of QCs.

Applications

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:

Big-tech companies

which need efficient cabling in their Quantum Computers (QC) or High Performance Computers (HPC).

Young and innovative companies

developing Quantum Computers and needing the latest generations of QC hardware to accelerate development.

Telecommunications companies

working with high-frequency electronics and needing to reduce switch performance and power consumption.

Public and private research organizations

interested in experimenting with cutting-edge components.

Partners

Spectrum consortium

News

  • Quantum Computing and its growing development – in which #Spectrum aims to play a role – have the potential to impact significantly our future and the technologies used in several...

  • Earlier this month, Spectrum consortium attended one of the major events in the Quantum Tech sector in Stuttgart 10-11 October: Quantum Business Network (QBN) Industry Summit, that took place during...

  • The EU-funded project Spectrum (GA N° 101057977) is developing a novel technology aimed to create a multi-port superfast switch with working temperature 10 mK and no heat dissipation, precisely to...

Help us accelerate the change 

Take part in our survey on the quantum world: we are gathering information on the state of the art to shape future prospectives for our Quantum Switch “QueSt” and align it with the users’ need.

The full survey usually takes about 10 minutes.