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Q: Fachverband Quantenoptik und Photonik

Q 4: Rydberg Atoms, Ions, and Molecules (joint session Q/MO)

Q 4.1: Vortrag

Montag, 10. März 2025, 11:00–11:15, HS I

Interfacing Rydberg atoms with an GHz electromechanical oscillator — •Julia Gamper, Cedric Wind, Valerie Mauth, Samuel Germer, Wolfgang Alt, and Sebastian Hofferberth — Institute of Applied Physics, University of Bonn, Germany

Rydberg atoms exhibit strong electric dipole transitions over a large range of the electromagnetic spectrum which make them interesting for hybrid quantum systems bridging vastly different frequency regimes.

In this talk, I will present our approach to interfacing optically controlled Rydberg atoms with an electromechanical oscillator for cooling one of the vibrational modes of the oscillator to its quantum mechanical ground state by exchange of microwave photons with the atoms.

I will discuss the design of this hybrid system and present our progress on the construction. Our system consists of a 3D magneto-optical trap for loading rubidium atoms which are subsequently magnetically transported to the experimental region which is at cryogenic temperatures of 4K and includes a vibration-isolation system that reduces vibrations below 25nm.

As a first step towards our envisioned hybrid system, we plan to trap the rubidium atoms with a superconducting wire trap on a chip with an integrated microwave resonator to drive microwave transitions of the Rydberg atoms close to the cryogenic surface.

Keywords: Rydberg Atoms; Hybrid Systems; Electromechanical Oscillator; Cryostat