Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 26: Poster – Precision Measurement, Metrology, and Quantum Effects

Q 26.3: Poster

Tuesday, March 11, 2025, 14:00–16:00, Tent

Quantum non-demolition measurements in Ramsey interfermetry — •Maja Scharnagl and Klemens Hammerer — Institute for theoretical physics, Leibniz University Hanover, Germany

We investigate quantum non-demolition (QND) measurements and their application in Ramsey protocols. In doing so, we optimize the axes of signal imprint and measurement and compare the optimized sensitivity to the classical and quantum Fisher information. Moreover, we discuss the performance of the optimized Ramsey protocols in the clock simulator.

Keywords: Quantum non-demolition measurement; Ramsey protocol; Optimization; Clock