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About Us

  • Vision
  • Partners
  • History
  • Location
  • References
  • Distributors


We at qutools are excited about quantum physics and we want to share this fascination with you. The purpose of our activity is to enable the better understanding of quantum physics, on one hand, and advancing technology through this understanding, on the other hand.

That is why we focus on innovation, while addressing the needs in your lab. We want you to be able to concentrate on your research, not on the measurement tools. With our knowledge of the technology, the hardware and the software needed to perform your type of experiment, together we will find the best solution to facilitate your research and we will tailor it to your needs.


Our team is not only qutools – we have strong partners:

Specialized in sophisticated electronic and embedded systems as well as control engineering and software solutions.
MIT Meiningen
MIT Made in Thüringen
Specialist for the production of high-quality CNC parts and the assembly of optical, electronic and mechanical components.


In 2005, Dr. Henning Weier, Prof. Dr. Christian Kurtsiefer and Prof. Dr. Harald Weinfurter from the quantum physics lab at Ludwig-Maximilians-University in Munich started this company. They wanted to provide “tools” for “quantum physics” – so they named the company qutools.

Having started with developing receiver modules for quantum cryptography, our expertise increases with every challenge that we take on and the ensuing innovation that we uncover. That is how the demonstrator for quantum entanglement quED was born and later transformed into a complete setup for student laboratories, courses and lectures. A similar application suitable for pupils and high-school students and designed primarily for education purposes is the Quantenkoffer.

This initial device already included a time-to-digital converter to correlate two APD signals, so it did not take long until the quTAU came to life, measuring timestamps with a resolution of <100ps and calculating coincidences and correlations. This has finally evolved into our newest baby, quTAG, which is faster and more precise.

And the story is not over yet! We still have a lot of ideas and we are always focusing on your needs, trying to find new ways of making your work easier. So keep an eye on our news or sign up for our newsletter to see what new products we come up with!


Visit us at our headquarter in Munich or in Darmstadt! Or write us an e-mail. Or call us. We even still have a fax machine!


qutools GmbH
Kistlerhofstraße 70 (Geb. 88)
81379 Munich

Phone: +49 (89) 321 649 59 0
Fax: +49 (89) 321 649 59 9


qutools GmbH
Beckstraße 25
64287 Darmstadt


Eleni Diamanti Dr. Eleni Diamanti, Université Pierre et Marie Curie, Paris:
“We use the quED in my laboratory as a central element for our teaching activities; it is always a great and guaranteed success thanks to its stability and reliability. We have also extensively used it in experiments ranging from the demonstration of nonlocal quantum games (Phys. Rev. Lett. 2015) to the reference-frame-independent quantification of bipartite entanglement (Phys. Rev. A 2014), more experiments are underway.”
Davide Bacco Davide Bacco, DTU Photonics:
We are using the quTAG for QKD demonstration. It is very fast and very stable on the performance. Congratulations for this very good product!


for USA, Canada, South America, India, Southeast India, Taiwan, Korea, Japan:
Quantum Design, Inc.
10307 Pacific Center Court
San Diego, CA 92121, USAPhone: +1-858-481-4400
Email (sales):
Email (service):

for P.R. China, Hongkong, Macao:
Aunion Tech Co., Ltd.
Floor 3, F Building,
Everbright Convention and Exhibition Center,
No. 86 Caobao road, Shanghai 200235 P.R. ChinaPhone: +86-21-51083793