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Göttingen 2012 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 13: Schwarze Löcher – Lösungen III

GR 13.1: Vortrag

Donnerstag, 1. März 2012, 09:50–10:10, ZHG 002

Spectroscopy of GravityHartmut Abele1, Thomas Bittner1, Gunther Cronenberg1, Hanno Filter1, Peter Geltenbort2, •Tobias Jenke1, Hartmut Lemmel1, and Martin Thalhammer11Atominstitut TU Wien, Wien, Österreich — 2Institut Laue-Langevin, Grenoble, Frankreich

This talk is about a test of the Newtons Inverse Square Law of Gravity at micron distances by quantum interference with ultra-cold neutrons deep into the theoretically interesting regime.

The method is based on a new resonance spectroscopy technique related to Rabi spectroscopy, but it has been adapted to gravitationally bound quantum systems. By coupling such a quantum system to mechanical vibrations, we observe resonant transitions, devoid of electromagnetic interaction.

As Newtonian gravity and hypothetical Fifth Forces evolve with different phase information, the experiment has the potential to test the equivalence principle and Newtons gravity law at the micron scale. This experiment can therefore test speculations on large extra dimensions of sub-millimetre size of space-time or the origin of the cosmological constant in the universe, where effects are predicted in the interesting range of this experiment and might give a signal in an improved setup.

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