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Q: Quantenoptik

Q 412: Geo600

Q 412.6: Gruppenbericht

Donnerstag, 7. März 2002, 15:30–16:00, HS 22/108

Tests of Relativity using cryogenic optical resonators — •Stephan Schiller², Holger Müller¹, Sven Herrmann¹, Claus Braxmaier¹, and Achim Peters¹ — ¹FB Physik, Univ. Konstanz, 78457 Konstanz — ²Inst. f. Experimentalphysik, Univ. Düsseldorf, 40225 Düsseldorf

In the framework of the unification of all forces of nature, significant efforts are made to test the fundamental principles underlying today’s theories, in particular the Einstein Equivalence Principle (EEP). Within the EEP, tests of Special Relativity (Michelson-Morley-Test, Kennedy-Thorndike-Test) and of Local Position Invariance can be perfomed using ultrastable resonators, where the light’s round-trip time serves as a measure of the speed of light or as clock period.

We discuss the results of experiments using sapphire cryogenic optical resonators [1], in particular a Michelson-Morley test using two resonators whose orientation varies due to the earth’s rotation.

[1] C. Braxmaier et al., Phys. Rev. Lett. (2001), to appear