SAMOP 2023 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 59: Poster IV
Q 59.52: Poster
Thursday, March 9, 2023, 16:30–19:00, Empore Lichthof
Quantum state tomography of a nanomechanical resonator in a pulsed measurement protocol — •Felix Klein1, Jakob Butlewski1, Alexander Schwarz2, Klaus Sengstock1, Roland Wiesendanger2, and Christoph Becker1 — 1Center for Optical Quantum Technologies, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany — 2Institute for Applied Physics, University of Hamburg, Jungiusstr. 11, 20355 Hamburg, Germany
Pulsed optomechanical experiments have received growing interest in recent years
as they promise a convenient path to full state tomography of quantum objects. Instantaneous snapshots and squeezing of one motional quadrature project the measurement induced noise into the perpendicular quadrature enabling quantum limited high precision measurements.
We realize high fidelity quantum state tomography of a nanomechanical SiN trampoline resonator in a fiber fabry pérot cavity achieving a position uncertainty of 2 pm using light pulses much shorter than the resonators oscillation period.
Here we give an overview of the current experimental setup and discuss ongoing modifications that will allow resolving the resonators zero-point motion.