26–30 Aug 2019
Universität Zürich
Europe/Zurich timezone

【361】qBOUNCE: first results of the Ramsey-type GRS experiment

29 Aug 2019, 17:00
15m
G 55

G 55

Talk Nuclear, Particle- and Astrophysics (TASK) Nuclear, Particle- & Astrophysics

Speaker

Joachim Bosina (Vienna University of Technology)

Description

This talk focus on the control and understanding of a gravitationally interacting elementary quantum system using the techniques of gravitational resonance spectroscopy (GRS) and ultracold neutrons (UCN). It offers a new way of looking at gravitation at short distances based on quantum interference.
In the past years, the qBOUNCE collaboration designed and built a new Ramsey-type experiment at the Institute Laue-Langevin (Grenoble). In 2018, we were able to measure gravitational state transition with the complete assembled experiment for the first time. In June 2019, another 200 days of measurements will start.
We will present the status of the data analysis and a novel search strategy using GRS to differentiate between Einstein’s cosmology constant and dark energy theories.

Author

Joachim Bosina (Vienna University of Technology)

Co-authors

Dr Katharina Durstberger-Rennhofer (TU Wien) Dr Tobias Rechberger (TU Wien) Martin Thalhammer (TU-Wien) Rene Sedmik Tobias Jenke (Atominstitut TU Wien) Andrei Ivanov (Unknown) Hanno Marius Filter (Vienna University of Technology) Gunther Cronenberg Hartmut Abele (TU Wien) Mario Pitschmann (Vienna University of Technology) Dr Peter Geltenbort (Institut Laue-Langevin) Mr Jakob Micko (Institut Laue-Langevin)

Presentation materials