Presentation Information

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-N202-7]Realization of THz-bandwidth all-optical quantum teleportation

〇(D)Takumi Suzuki¹, Takaya Hoshi¹, Shotaro Oki¹, Konhi Ichii¹, Hironari Nagayoshi¹, Kazuma Takahashi¹, Takahiro Kashiwazaki², Taichi Yamashima², Asuka Inoue², Takeshi Umeki², Akito Kawasaki^1,3,4, Tatsuki Sonoyama^1,3,4, Kan Takase^1,3,4, Warit Asavanant^1,3,4, Mamoru Endo^1,4, Akira Furusawa^1,3,4 (1.The Univ. of Tokyo, 2.NTT Device Technology labs,, 3.OptQC, 4.Riken RQC)

Keywords:

optical quantum computer,quantum teleportation,quantum information processing

To overcome the approximate 100 MHz bandwidth limitation of optical quantum teleportation, we introduced a waveguide Optical Parametric Amplifier (OPA). This enabled the all-optical implementation of feedforward and quantum measurement, demonstrating THz-bandwidth quantum teleportation—10,000 times faster than conventional methods. The experiment achieved a fidelity of F=0.80, a level unattainable with classical methods, which is a result that greatly advances the realization of ultra-high-speed optical quantum computers.

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