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GR: Fachverband Gravitation und Relativitätstheorie

GR 12: Experimente zur Gravitation II

GR 12.4: Vortrag

Donnerstag, 6. März 2008, 15:00–15:20, KGI-HS 1010

Gravitational waves and rovibrational quantum interferometers — •Dennis Lorek¹, Andreas Wicht², Claus Lämmerzahl¹, and Hansjörg Dittus¹ — ¹ZARM, Universit\"at Bremen, Germany — ²Institut für Experimentalphysik, Heinrich-Heine-Universität, Düsseldorf, Germany

We show that the application of atom interferometry techniques to the internal, i.e. rotational-vibrational states of molecules provides a new tool for ultra-high precision tests of fundamental physics. As an example we present how a molecular rovibrational quantum interferometer based on the HD+ molecule may be used to detect gravitational waves. The perturbation of the molecular Hamiltonian by a gravitational wave is derived, the quantum interferometric measurement principle is described, and the size of the effect is estimated. We will discuss whether a gravitational wave causes a frequency shift which may be detectable with the next generation atom interferometers.