MLS facility in Berlin-Adlershof

The Metrology Light Source (MLS) is a synchrotron facility in Berlin, operated by PTB. The synchrotron runs at electron energies between 100 and 600 MeV and is designed to emit light with a very well-defined intensity, to be used for calibration purposes. The spectrum covers the entire range from the the near-IR down to the VUV range, which is ideal for a broad scan across the anticipated isomer transition in the VUV. First measurement campaigns with Th surface-adsorbed crystals from PTB have already been performed, and future campaigns using Th-doped crystals from TU Wien are currently being prepared.

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MLS in Berlin


Okayama University, Japan

The University of Okayama (about 4 hours south of Tokyo by Shinkansen) accomodates the Research Core for Extreme Quantum World, established in 2013. Part of the research is dedicated to a meausurement of neutrino rest masses using quantum optics techniques. The mechanism of choice is called RENP (radiative emission of a neutrino pair), which makes use of a superradiant coupling between two suitable quantum states. Among a set of various other candidates, the ground and isomeric states of Th-229 are considered as a pair of such quantum states. As with all other experimental groups, a careful analysis of the basic properties of this two-level system is the first priority.

The Okayama group has frequent access to the SPring-8 facility, which prides itself as the largest third-generation synchrotron facility in the world. The storage ring of SPring-8 has a circumfence of almost 1.5 km and holds electrons at an energy of 8 GeV. The beam current is usually 100 mA, operated in top-up mode. There exist some 50 beam lines with a maximum light intensity at photon energies ranging from soft X-rays (100 eV) to hard X-rays (300 keV), where the full available spectrum spans from 12 meV to 3 GeV. Some of the measurements performed here by the Okayama group employ Th-doped crystals produced by the Vienna group.

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Okayama University

Research Core for Extreme Quantum World



Kerstin Ergenzinger

Kerstin Ergenzinger is an artist working in the fields of installation, electronic arts/new media and drawing. Her works explore the sensory and conceptual relationships between the individual and its physical surroundings. By focusing on processes of perception, on technologies and strategies applied in spatial and mental navigation and the production of knowledge, she investigates the limits of human perception and our capacity to comprehend and interpret our environment. How do you move in the world, and how does that feel? How does your body relate to other bodies and to its surroundings, and how can you define the coordinates of our own position? In response to these fundamental questions, she develops in her works diverse points of view that play with the opposition between metaphorical distance and physical immediacy. Alongside her studio practice she is frequently involved in collaborative projects and research projects in the fields of dance, music, film and science.

Kerstin Ergenzinger and the nuClock consortium will interface arts and quantum physics. Part of her work will be aligned with the European FEAT initiative; an action that brings together artists and FET projects. The mission of this action is two-fold: First, it seeks to explore how art work can be used as a novel channel to communicate contemporary research to a broad audience. Second, FEAT serves as a broad and open platform to discuss relations between the realms of arts and science from a philosophical point of view. The results of the joint art/science work will be shown at prestigious exhibitions and published in peer-reviewed journals.



Kerstin1Navigating Noise (2015). Photo: Katja Hommel.

Kerstin2Wanderer [1] (2014). Photo: David Ertl.