Group seminar at MPQ and Zoom: Towards Coherent Excitation to Rydberg States for Quantum Computing using Homebuilt Lasers

Karthikeyan Ganesan, Indian Institute of Science Education and Research (IISER) Kolkata, India
Group seminar at MPQ lecture hall and Zoom
Monday, January 22 at 11am (MEZ)

Rydberg excitation plays a pivotal role in quantum computing, specifically in implementing two-qubit quantum gates. In our group, we are currently attempting to perform Rydberg excitation of Rubidium atoms located in optical tweezers for the purpose of quantum computing, by incorporating home-built Continuous Wave (CW) lasers. In our approach, instead of using the traditional Littrow configuration that uses a diffraction grating, we use an interference filter. We aim to use this homebuilt 780 nm laser along with a commercial 480 nm laser for Rydberg excitation. In this talk, I will briefly discuss the history of Rydberg excitation in our group and highlight the key differences between the previous system and our proposed system. I will then present the latest results from the lab, and finally end with the future plans with our new system.