Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 27: Poster – Ultra-cold Atoms, Ions and BEC (joint session A/Q)

Q 27.26: Poster

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

Microwave-Optical Four-Photon Lattice for Ultracold Rubidium Atoms — •Stefanie Moll, Patrick Haas, and Martin Weitz — Institut für Angewandte Physik, Bonn, Germany

Optical lattices have become an important tool in fields ranging from the simulation of solid state physics theory effects to quantum information. In earlier work of our group, the versatility of this system has allowed for the simulation of quantum Rabi physics with cold atoms.

We here report on the development of a scheme to realize state selective lattices for alkali atoms despite the usage of extremely far detuned trapping light fields. The method is used on a combination of optical and microwave transitions. We present a proof of principle experiment demonstrating the introduced double resonant lattice. Prospects of the described scheme include fault-tolerant quantum computation in optical lattices and the generation of highly entangled cluster states for measurement-based quantum computation.

Keywords: Optical Lattice; Rubidium; Cluster States; Quantum Simulation