Milestone

First superconducting flux qubit observed in the QCT lab

The QCT group at IFAE has observed the existence of the first superconducting flux qubit. This is a milestone for the group.These are the kind of chips that are of interest for quantum computing with quantum annealing, quantum optics and detection.

The chip was designed at IFAE and manufactured in Glasgow. The group will soon characterize its spectrum and lifetime.

The image on the right shows an unequivocal sign of the presence of the qubit. The horizontal line is the resonance of the resonator that is used to detect the qubit. Where things change show that the qubit and resonator have resonated, and their states are hybridized.

Latest Group News

Results

Closing event of the Quantum Communications Complementary Plan

November 27, 2025

ICFO hosted the closing event of the Plan Complementario de Comunicaciones Cuánticas, presenting the project’s results and new infrastructure developments in quantum communications.

Featured in the media

Pol Forn-Díaz featured in the media

October 15, 2025

Pol Forn-Díaz comments on the Nobel Prize in Physics in superconducting circuits, the field his group works in

New device

New Dilution Refrigerator Installed at the QCT Lab

September 26, 2025

The Quantum Computing Technologies Lab at IFAE has just received its new dilution refrigerator from Leiden Cryogenics. The unit, customized with IFAE’s colors, is currently cooling down and is expected to reach 10 mK (0.01 K above absolute zero) tomorrow.