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Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.12: Poster
Mittwoch, 11. März 2020, 16:30–18:30, Empore Lichthof
Perspectives for fundamental experiments with nanostructured optical cavities: From thermal quanta to general relativity — •Johannes Dickmann1,2,3, Steffen Sauer1,4, Sebastian Ulbricht1,2,3, Robert Alexander Müller1,2,3, Jan Meyer1,2,3, Tim Käseberg2, Mariia Matiushechkina1,4, Andrey Surzhykov1,2,3, Ernst Maria Rasel1,4, Michèle Heurs1,4,5, and Stefanie Kroker1,2,3 — 1Exzellenzcluster QuantumFrontiers, Hannover and Braunschweig, Germany — 2Physikalisch-Technische Bundesanstalt, Braunschweig, Germany — 3Technische Universität Braunschweig, Braunschweig, Germany — 4Leibniz Universität Hannover, Hannover, Germany — 5Max Planck Institute for Gravitational Physics, Hannover, Germany
High finesse optical cavities are the key ingredients for the world's most precise measurements. These range from optical atomic clocks via quantum optomechanics up to gravitational wave detection. Improving the stability of optical cavities paves the way for the next frontiers of scientific discoveries. Recent mirror technologies based on nanostructured surfaces are very promising to enhance the stability of optical cavities towards a range where quantum effects and the influence of gravity become apparent. We present theoretical considerations on gravitational effects on the optical output of ground-based cavities as well as discussions on thermal fluctuations using thin membranes in cavities. Proposed experimental configurations including design guidelines to measure temperature via thermal fluctuations and to test general relativity on earth complement this contribution.