In 2025, Delft Circuits joined forces with QuantWare and Qblox to launch HAVIK, a European collaboration focused on advancing superconducting quantum technology. The project is co-funded by the European Union and brings together complementary expertise across the quantum hardware stack.
As the project progresses, we are excited to share an update on our ongoing work and early results.
Pushing the Limits of Qubit Fidelity
The primary objective of HAVIK is to achieve state-of-the-art two-qubit (2Q) gate fidelities in superconducting qubits. High-fidelity gate operations are essential for building reliable and scalable quantum computers, as they directly impact computational accuracy and error rates.
By the end of the project, the consortium aims to demonstrate:
These targets represent an important step toward more robust and scalable quantum systems.
Delft Circuits’ Contribution
At Delft Circuits, our role within HAVIK focuses on improving the thermalization of cryogenic cabling. Efficient thermalization is key to preserving signal integrity at the ultra-low temperatures required for quantum computing.
By optimizing how signals are transmitted from room-temperature electronics to the qubits, we help ensure that control pulses used in 2Q operations reach the qubits with higher fidelity and reduced noise.
Progress and Early Results
Since the start of the project, our efforts have already led to encouraging results:
These developments mark important progress toward achieving the ambitious fidelity goals set within HAVIK.
A Collaborative European Effort
HAVIK demonstrates the value of close collaboration across the quantum ecosystem. By combining expertise in qubit design, control electronics, and cryogenic infrastructure — and with support from the European Union — the project addresses key challenges in quantum hardware development.
We look forward to sharing more updates as the project continues and as we move closer to reaching our performance targets.
