Freiburg 2008 – wissenschaftliches Programm
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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.