[18a-A32-1~10] KS.2 Quantum Information Engineering Group

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-A32-5] Demonstration of repeater operations towards the realization of emission-absorption type diamond quantum repeater

〇(D)Raustin Reyes¹, Yuhei Sekiguchi^2,3, Daisuke Ito¹, Taichi Fujiwara¹, Kansei Watanabe¹, Hiromitsu Kato^2,4, Toshiharu Makino^2,4, Yu Mimura^2,5, Hideo Kosaka^1,2,3 (1.Grad. Sch. Eng., Yokohama Natl. Univ., 2.QIC, Yokohama Natl. Univ., 3.IAS, Yokohama Natl. Univ., 4.AIST, 5.Furukawa Electric Co., Ltd.)

Keywords:

Quantum device basics,Quantum communication systems,Quantum manipulation / Quantum measurements

We are focusing on an nitrogen-vacancy (NV) center in diamond as a device for realizing a quantum repeater. The emission-absorption type entanglement generation does not degrade the state transfer fidelity due to frequency scattering, which is a problem in solid-state devices. Here, we demonstrate that the photon input to the NV center is transferred to the nitrogen nuclear spins, and then the state is transferred to the photon emitted from the NV center by quantum teleportation.