[25p-12P-1~13] 3.9 Optical quantum physics and technologies (formerly 3.10)

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[25p-12P-2] [The 8th Photonics Encouragement Award Speech] Linear optical quantum computation with frequency-comb qubits and passive devices

〇Tomohiro Yamazaki^1,2, Tomoaki Arizono³, Toshiki Kobayashi^3,4, Rikizo Ikuta^3,4, Takashi Yamamoto^3,4 (1.NTTBRL, 2.NTTTQC, 3.Osaka Univ., 4.QIQB)

Keywords:

quantum computation,linear optics,frequency comb

In quantum computation using photons, various degrees of freedom of photons such as polarization and time bins are used. Although the use of time-frequency degree of freedom is relatively error-free, it requires active devices such as fast switches for quantum operations. In this study, we show that quantum computation can be performed only by passive devices such as time-resolving photon detectors and optical interleavers by using quantum frequency comes consisting of a single photon as a qubit.