Arkeon Technologies AB, a spin-out from Chalmers University of Technology and the Wallenberg Centre for Quantum Technology (WACQT), is making waves in the Swedish deep-tech landscape. Founded by Peter Hörstedt and Andreas Nylander, the company is pushing the boundaries of scalable superconducting quantum processors - built on the very tunnelling junctions recognized by this year’s Nobel Prize in Physics.
-"Our goal is to redefine how qubits are built, making frequency trimming an integral part of quantum chip production. Every quantum processor unit in the future should be designed for trimming, and then precisely trimmed to perfection. The technology we are developing today will be a key stepping stone toward scalable quantum systems worldwide", says Andreas Nylander.
Arkeon’s breakthrough lies in its quantum chip manufacturing technology, which enables post-fabrication fine-tuning of superconducting qubits. By adjusting the resistance of Josephson junctions at room temperature, the company allows each qubit to meet precise specifications. This innovation significantly increases chip yield, reduces costly waste, and ensures consistent qubit performance across quantum devices.
One of the biggest challenges in quantum chip production today is achieving the correct operating frequency for each qubit. Current fabrication methods often result in inconsistent performance, low yield, and high production costs. Arkeon’s method — rooted in research at Chalmers — addresses this by enabling room-temperature tuning of Josephson junctions after manufacturing. This is a key enabler for scalable quantum systems.
At the Venture Cup Sweden Final 2025, Arkeon Technologies was honored with two major awards: Startup of the Year and Game Changer. These accolades recognize the company’s disruptive potential and technical excellence in quantum innovation.
Peter Hörstedt receiving price at Venture Cup
- Senior Research Engineer, Quantum Technology, Microtechnology and Nanoscience