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ResearchVan Swinderen Institute

Physics Colloquium, Reinhold Walser, TU Darmstadt

When:Th 20-06-2019 16:00 - 17:00
Where:FSE-Building 5111.0080

Speaker: Reinhold Walser
Affiliation: TU Darmstadt

Designing optics for quantum matter-waves

Date: 20 June 2019
Start: 16:00 (Doors open and coffee available at 15:30)
Location: FSE-Building 5111.0080
Host: Bernhard Hoenders


Atoms are the ultimate quantum sensors for electro-magnetic fields and gravi¬tational forces. By a feat of nature, atoms occur with bosonic or fermionic attributes, but where produced otherwise identically without any “manufacturing tolerance”.

The QUANTUS collaboration [1], has developed a highly sophisticated, but yet compact and rugged matter-wave device that can be used, for example, as a portable inertial acceleration sensor as shown in Fig. 1. The ultimate stress test of this device was completed successfully on Jan. 21. 2017, when the MAIUS [2] sounding rocket mission carried the atomic chip experiment to 243 km above ground and back, performing matter-wave-interferometry at Mach 4.2. After returning from space, it was recovered and is fully operational.

In this presentation, I will discuss applications of matter-wave optics that can be done on such a device.


[1] H. Mütinga et al, Phys. Rev. Lett. 110, 093602 (2013); T. van Zoest et al., Science, 328, 1540 (2010).

[2] MAIUS:, D. Becker, Nature vol. 562, 391–395 (2018)