Coherent Noise Cancellation for Optomechanical Sensing and Gravitational Wave Detectors (C10#)

• Fachliche Zuordnung: Optik, Quantenoptik und Physik der Atome, Moleküle und Plasmen
• Förderung: Förderung von 2011 bis 2014
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 5485423

In the new project C10 we will explore coherent feed-forward control for quantum noise cancellation (QNC) in optomechanical sensing. Quantum noise provides the limit to measurement precision in various physical systems ranging from atomic spin measurements, via displacement sensing in micro-optomechanical setups to gravitational wave detectors. Techniques for coherent quantum noise cancellation will allow to improve on and surpass these limitations. Our project will experimentally and theoretically investigate QNC techniques in quantum optical systems. In tabletop experiments on interferometer subsystems { such as the laser system or suspended cavity mode cleaners { we will provide valuable results guiding the way to coherent control of gravitational wave detectors. On the theoretical side we will explore connections, generalisations and applications of QNC techniques which have been put forward independently in the context of interferometric displacement sensing and precision measurements of atomic spins. The research performed in this project will serve to enhance the sensitivity of next generation interferometric gravitational wave detectors.

• DFG-Verfahren: Transregios
• Teilprojekt zu: TRR 7: Gravitationswellenastronomie: Methoden - Quellen - Beobachtungen
• Antragstellende Institution: Friedrich-Schiller-Universität Jena
• Mitantragstellende Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Teilprojektleiterin: Professorin Dr. Michèle Heurs