SAMOP 2023 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 6: Poster I (joint session QI/Q)

QI 6.36: Poster

Montag, 6. März 2023, 16:30–19:00, Empore Lichthof

Microwave quantum memory based on rare earth doped crystal — •Jianpeng Chen^1,2,3, Ana Strinic^1,2,3, Achim Marx^1,2, Kirill G. Fedorov^1,2, Hans Huebl^1,2,3, Rudolf Gross^1,2,3, and Nadezhda Kukharchyk^1,2,3 — ¹Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — ²Physik department, Technische Universität München, 85748 Garching, Germany — ³Munich Center for Quantum Science and Technology, 80799 Munich, Germany

Quantum memory is essential in future quantum technologies, such as quantum computing circuits and quantum communication links. Specifically, Crystals doped with rare earth ions are promising competitive candidates due to their long coherence times [1] and potential multiplexing capability [2]. Here, we use a transmission line to couple microwave signals to rare earth ion dopants in yttrium orthosilicate crystals (Y2SiO5) at 10 mK. We present experimental results on storing coherent microwave states using the spin echo protocol. We will discuss the resulting coherence time and the impact of the transmission line design on the efficiency of the quantum information storage and its multimodality potential. We acknowledge financial support from the Federal Ministry of Education and Research of Germany (project number 16KISQ036). [1] Zhong, M, Nature 517, 177*180 (2015). [2] Antonio Ortu et al.Quantum Sci. Technol. 7 035024 2022.