[20p-A404-1~18] 3.9 Optical quantum physics and technologies (formerly 3.10)

△ [20p-A404-8] Construction of a fiber-based one-dimensional cluster state generation system with long-term stability by automating polarization and phase control II

〇Tomohiro Nakamura¹, Takefumi Nomura¹, Mamoru Endo^1,2, Atsushi Sakaguchi², Takahiro Kashiwazaki³, Takeshi Umeki³, Kan Takase^1,2, Warit Asavanant^1,2, Jun-ichi Yoshikawa², Akira Akira^1,2 (1.The Univ. of Tokyo, 2.RIKEN, 3.NTT Device Technology Labs)

Keywords:fiber, quantum computation, cluster

To realize an optical quantum computer accessible from the cloud, the ability to automatically keep the entire system stable for a long time is essential. Fiber-based systems are expected to improve stability by eliminating spatial alignment. In my previous presentation, I introduced various control mechanisms for the instability inherent in fiber-based systems and measured the squeezed state. In this talk, we will further develop the system to generate one-dimensional clustered states, which are large-scale quantum entangled states.