Quantum computers can spur the development of new breakthroughs in science and technology, tackling problems that today’s conventional computers cannot handle. The low number of qubits that hardware can support and the large number of required cables are preventing the technology from making a bigger market penetration. The EU-funded SPECTRUM project will develop technology to remarkably simplify the control over multiple qubits through the same cable. Researchers will develop a switch whose superconductive core will operate at frequencies unachievable with classical semiconductor electronic components and with nearly zero power dissipation. The new switch will also lower related downtime, cost and overall space occupied by the hardware.