The 86th JSAP Autumn Meeting 2025
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Presentation Information

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-N202-4]Extension of the storage time in a Pr3+:Y2SiO5-based quantum memory

〇Kota Sasaki1, Yudai Nodaguchi2, Daisuke Yoshida3,4, Feng-Lei Hong2,3, Akira Ozawa2,3, Tomoyuki Horikiri2,3,4 (1.IFGS, Yokohama Natl. Univ., 2.Grad. Sch. Eng., Yokohama Natl. Univ., 3.IMS, Yokohama Natl. Univ., 4.LQUOM Inc.)

Keywords:

quantum memory,rare-earth-ion-doped crystal

We employed the atomic frequency comb scheme using a rare-earth-ion-doped crystal, Pr3+:Y2SiO5, as a quantum memory essential for quantum repeaters. By combining spin-wave storage with dynamical decoupling, we successfully extended the storage time. In this study, we report the achievement of long-duration storage through optimization of the RF pulse sequence to suppress coherence degradation.
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