Hannover Messe 2019, April 1st - 5th

Again IQST participated in the Hannover Messe 2019, the world’s leading trade fair for industrial technology, as a co-exhibitor at the “Baden-Württemberg joint stand” in hall 2, A18. Our demonstrators have attracted many curious and interested visitors and we enjoyed discussing with all of them.

Many thanks to all IQST participants for representing the center so outstandingly!


Portable quantum sensors for Industry 4.0 applications

IQST fellow Jens Anders and his PhD students Anh Chu and Heiko Bürkle, Institute of Smart Sensors, University of Stuttgart, presented first prototypes of quantum sensors that can be used in a variety of applications:

Nuclear and electron spin resonance spectroscopy (NMR and ESR spectroscopy) are two high-performance analysis methods commonly associated with bulky instruments and high cost. Therefore, despite their immense analytical power, today, they find no widespread use outside R&D laboratories. This is regrettable, since it is very hard – if not impossible – to match the information content of NMR and ESR spectroscopy results with other analytical methods. Here, the two methods gain their unmatched specificity from the use of “spins” (nuclear (NMR) or electron (ESR) spins) as a nanoscopic probe inside a molecule, which can be read out using a simple coil. To make the powerful NMR and ESR techniques widely available, research at the Institute of Smart Sensors at the University of Stuttgart focusses on the use of integrated circuit technology for the miniaturization of NMR and ESR spectrometers. From these research activities, which are embedded into the Stuttgart/Ulm Center for Integrated Quantum Science and Technology (IQST), the prototypes of a palm-size NMR spectrometer and the world's first laboratory prototype of a portable ESR spectrometer have emerged. Both instruments are on display with live demos at the Center for IQST Hannover Messe booth. A first possible target applications of the portable NMR and ESR spectrometers can be found in the high-precision quality monitoring of manufacturing processes in the context of Industry 4.0. In addition, there are numerous other future applications in the field of materials research and personalized medicine.

Prototype of a portable trace gas sensor

The PhD students Johannes Schmidt, Patrick Kaspar and Fabian Munkes, 5th Institute of Physics, University of Stuttgart and Mahdieh Schmidt, IQST science manager, presented a prototype of a portable trace gas analyzer.

Research in atomic physics can help to facilitate new approaches of sensing technology. One example among others is the detection of tiny concentrations of a trace gas in a high background gas pressure. The applicability of these sensing methods is verified on the example of rubidium vapor. Since the atoms are excited optically using lasers, a containment made from glass is necessary. The readout of the atomic states can be improved further by integrated electronic circuits on glass. Possible suitable applications of this gas sensor technology are breath gas analysis to determine relevant molecules in the exhaled breath gas or the measurement of nitrogen oxides in environmental analysis.


Miniaturisierung braucht Quantenphysik