2022/06/07 by Anton Mladenov, Natalia Pankratova, Mladenov, Anton +9 · 1 citation
Physics and Astronomy · Engineering · #Quantum optics and atomic interactions #Photonic and Optical Devices #Optical Network Technologies
paper · pdf · doi:10.48550/arxiv.2206.03135
Efficient quantum memory is of paramount importance for long-distance quantum communications, as well as for complex large-scale computing architectures. We investigate the capability of Er3+:Y2SiO5 crystal to serve as a quantum memory for the travelling microwave photons by employing techniques developed for dense optical ensembles. In our efforts to do so, we have performed high-resolution microwave spectroscopy of Er3+:Y2SiO5, where we identified electronic spin as well as hyperfine transitions. Furthermore, we have explored spectral hole burning technique and studied the spin relaxation process at millikelvin temperatures, determined the main relaxation mechanisms, which lay the groundwork for further studies of the topic.