Quantum clock interferometry (B09)

• Subject Area: Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 274200144

Project B09 investigates interferometry with atoms, that are in a superposition of internal clock states, and thus sensitive to the gravitational redshift. Such a quantum clock interferometer has not been realised so far and is one of DQ-mat’s most ambitous goals. With theory support by project A05, we will experimentally realize the first quantum clock interferometer. In the future, the quantum clock interferometer will be scaled up to metre-sized delocalisations in the Very Long Baseline Atom Interferometer facility, providing an experimental access to test the gravitational redshift with quantum-mechanical objects.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1227: Designed Quantum States of Matter (DQ-mat) - generation, manipulation, and detection for metrological applications and tests of fundamental physics
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Heads: Dr. Dennis Schlippert; Dr. Christian Schubert