From its inception in 2002, Stahl-Electronics has been continuously engaged in research projects with both public institutions and private industry. Among these projects is electronic development for:
- CERN
- Max-Planck Institute Heidelberg, PTB Braunschweig, Helmholtz Center GSI Darmstadt, Forschungszentrum Jülich (Germany)
- Freie Universität Berlin, LMU Munich, universities of Düsseldorf, Leipzig, Mainz, Stuttgart, Würzburg (Germany)
- Harvard University, MIT, Michigan State University, Carnegy-Mellon University, University of California at campuses Riverside and Irvine (USA)
- London Imperial College (UK)
- KBSI (Korea)
- Triumf (Canada)
- University of New South Wales (Sydney)
and non-disclosed industrial projects in the realm of quantum computing.
BASE-STEP - Baryon Antibaryon Symmetry Experiment at CERN
In March 2026, five of our devices are operating inside the BASE-STEP apparatus, the world’s first transportable antimatter trap, which has been successfully transported in a lorry around CERN facilities.
The Sympathetically cooled Transportable Experiment for Precision measurements confines antiprotons in a cryogenic Penning trap and is designed to be transported on a lorry between accelerator facilities. The motivation: CERN’s own facility has magnetic field interference that limits measurement precision, whereas external labs can offer a 100-fold improvement, such as the Heinrich Heine University Düsseldorf about 700km away. The one-tonne apparatus uses superconducting magnets, liquid-helium cooling, and built-in shock absorption to keep the antiprotons safely confined during transport.
Keeping antiprotons trapped through a road journey demands the utmost in voltage stability and switching precision — exactly what the following instruments by Stahl-Electronics deliver in this application:
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UM ultra-precision voltage source defines the antiproton’s confinement potential. With 10-8 stability and 25-bit resolution.
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BS/BSA multichannel DC source supplies the many individual trap electrodes that shape, steer, and cool the antiproton cloud across up to 16 low-noise channels at ppm stability.
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HS-2000 high-voltage switch handles the precisely timed high-voltage pulses that load and eject antiprotons, switching up to 2000 V onto capacitive electrodes in as little as 35 ns.
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An HV multichannel high-voltage source and an RF down-converter round out the instrument suite, providing stable DC potentials for beam optics and shifting the faint antiproton image-current signal into a detectable frequency band.
Recently, we have also been working, among others, on the following projects:
qBriqs - Building bricks for quantum technologies
KIT Karlsruhe, IAF Freiburg, PTB Braunschweig, Rosenberger GmbH & Co. KG
The whole measurement chain for superconducting qubits is investigated and further developed. The project considers all components of the qubit manipulation path, as well as on the read-out path - including filters, amplifiers, wiring and electronics. The final performance is finally to be proven in a demonstrator.
Stahl-Electronics is developing an ultra-stable DC current source for the cryogenic realm. In this context, we try out feed-back mechanisms from the probe to increase stability.
Quantum information processing with individual electrons
Hemmerling Lab, University of California, Riverside, Assoc. Prof. Boerge Hemmerling
University of California, Berkeley, Prof. Hartmut Haeffner
Experiments seek to implement a qubit based on a trapped electron, in order to speed up gates, and to remove the need for laser technology entirely. The qubit is provided by the spin states in a magnetic field where the light mass of the electron enables fast interactions between two electrons in the same trapping potential. This simple level structure (just two levels) prevents leakage out of the qubit space.
As a first step, Hemmerling Lab managed to trap electrons in a linear PCB Paul trap and hold them for 5ms. Stahl-Electronics develops cryogenic amplifiers to detect individual electrons.
