[23a-A601-1~9] 3.9 Optical quantum physics and technologies (formerly 3.10)

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

[23a-A601-6] Demonstration of broadband all-optical feedforward operation for ultrafast quantum information processing

〇(M1)Takumi Suzuki¹, Taichi Yamashima¹, Koki Igari¹, Takahiro Kashiwazaki², Asuka Inoue², Takeshi Umeki², Kan Takase^1,3, Warit Asavanant^1,3, Mamoru Endo^1,3, Akira Furusawa^1,3 (1.The Univ. of Tokyo, 2.NTT Device Technology Labs, 3.Riken RQC)

Keywords:

optical quantum computer,optical parametric amplification,quantum optics

Optical quantum computers with the quadratures of light, execute calculations with entangled states by repeatedly conducting measurements and performing result-dependent displacement operations (feedforward). We have tested an all-optical measurement and feedforward method using optical parametric amplification and interference with a beam splitter. In this experiment, we demonstrated broadband(20 GHz) measurement and feedforward using a waveguide optical parametric amplifier.