Experimental time-reversed adaptive Bell measurement towards all-photonic quantum repeaters

Yasushi Hasegawa¹, Rikizo Ikuta^1,2, Nobuyuki Matsuda^3,9, Kiyoshi Tamaki⁴, Hoi-Kwong Lo^5,6,7, Takashi Yamamoto^1,2, Koji Azuma^3,8 & Nobuyuki Imoto^1,2

Nature Communications 10, Article number: 378 (2019)

¹Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.

²Quantum Information and Quantum Biology Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka 560-8531, Japan.

³NTT Basic Research Laboratories, NTT Corporation, Japan.

⁴Graduate School of Science and Engineering for Research, University of Toyama, Japan.

⁵Center for Quantum Information and Quantum Control (CQIQC), University of Toronto, Canada.

⁶Department of Physics, University of Toronto, Canada.

⁷The Edward S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Canada.

⁸NTT Research Center for Theoretical Quantum Physics, NTT Corporation, Japan.

⁹Present address: Department of Communications Engineering,Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan.