[15p-K309-1~12] 3.9 Optical quantum physics and technologies

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[15p-K309-9] Error factor analysis of quantum state tomography by using quantum optics simulator

〇Junpei Oba¹, Hsin-Pin Lo², Yasuhiro Yamada², Takayuki Matsui¹, Takuya Ikuta², Yuya Yonezu², Toshimori Honjo², Seiji Kajita¹, Hiroki Takesue² (1.TCRDL, 2.NTT BRL)

Keywords:

Error factor analysis,time-bin entangled photon pair,quantum state tomography

High-quality quantum state generation is crucial for realizing advanced quantum information processing. While quantum state tomography is generally used to evaluate the quality of quantum states, it is difficult to directly infer the error factors because various errors are all compressed into a single density matrix. In this work, we used a time-bin entangled photon pair generation experiment as a case study and performed autonomous estimation of the error factors that reproduce the experimental results by combining simulation and parameter optimization technique.