Optical clocks testing fundamental physics (B02)

• Subject Area: Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 274200144

In this project, high-precision optical clocks based on 171Yb+ ions and Sr atoms are employed to investigate new physics effects that challenge the standard model of particle physics. Within DQ-mat, the most stringent limits for temporal variations and gravitational couplings of fundamental constants have been obtained so far. Further developments of the optical clocks will improve such tests and searches for couplings between normal and dark matter. The collaboration with other projects will significantly broaden the scope and sensitivity of these investigations.

• 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. Nils Huntemann, since 7/2020; Privatdozent Dr. Christian Lisdat; Dr. Uwe Sterr, until 6/2024