Tamagawa University Quantum ICT Research Institute Bulletin Vol.13 No.1 (2023)

Regular paper

1. Kenji Nakahira, “A characterization of von Neumann entropy using functors,”pp.1-5
2. Grant Otsuki, “Cybernetics in Japan: Ikehara Shikao, Democracy, and Post-World War II Transformations in Japanese Universities,”pp.7-17
3. Ken Tanizawa and Fumio Futami, “Mitigating Tradeoffs between Signal Security and Transmission Reach in PSK Y-00 Quantum Stream Cipher with Deliberate Signal Randomization,”pp.19-22
4. Fumio Futami, Ken Tanizawa and Kentaro Kato, “Transmission of Y-00 Quantum Noise Stream Cipher with Quantum Deliberate Signal Randomization over Field-Installed Fiber,”pp.23-25
5. Kentaro Kato, “Classical Capacity of Turbulent Channels in M-ary Phase Shift Keying Signal Format,”pp.27-34
6. Genta Masada, Kenji Yoshida and Yuta Suzuki, “Second harmonic generation at 532 nm using an external cavity with a periodically poled KTiOPO4 crystal,”pp.35-38

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