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GR: Gravitation und Relativitätstheorie

GR 2: Experimentelle Tests, Quantengravitation

GR 2.6: Fachvortrag

Dienstag, 16. März 2004, 15:40–16:00, H20

A test of the Lorentz Invariance with actively rotated cryogenic resonators — •Piergiorgio Antonini, Maxim Okhapkin, Ingo Ernsting, Andreas Wicht, Ertan Göklü, and Stephan Schiller — Universität Düsseldorf, Institut für Experimentalphysik

The effort to unify all forces of nature requires improved tests of the Principles underlying the General Relativity. Among these is Lorentz Invariance. Laboratory tests of Lorentz Invariance for electromagnetic waves are performed by measuring the resonance frequencies of electromagnetic resonators as function of their speed or orientation with respect to an assumed preferred frame. We describe the development and the results of an experiment using two independent Nd:YAG lasers whose frequencies are stabilised to the resonance frequencies of two cryogenic optical resonators (COREs), operated at a temperature below 4 K. The apparatus is actively rotated