Theory of Multiplicative Noise Caused by Coupling Loss and Amplitude Vector Rotation in Optical Communication Channels. - Osamu Hirota; Juro Toda (IEEE Trans. Commun., 1983)

On Reconciliation of Discrepant Sequences Shared through Quantum Mechanical Channels. - Kouichi Yamazaki; Masao Osaki; Osamu Hirota (ISW, 1997)

Quantum detection and mutual information for QAM and PSK signals. - Kentaro Kato; Masao Osaki; Masahide Sasaki; Osamu Hirota (IEEE Trans. Commun., 1999)

A Foundation of Quantum Channels with Super Additiveness for Shannon Information. - Osamu Hirota (Appl. Algebra Eng. Commun. Comput., 2000)

Square-root measurement for quantum symmetric mixed state signal. - Kentaro Kato; Osamu Hirota (IEEE Trans. Inf. Theory, 2003)

Editorial. - Osamu Hirota (Quantum Inf. Comput., 2004)

Immunity against Correlation Attack on Quantum Stream Cipher by Yuen 2000 Protocol. - Osamu Hirota; Kaoru Kurosawa (Quantum Inf. Process., 2007)

Introduction to special issue on secure quantum communication. - Osamu Hirota; Horace P. Yuen (Quantum Inf. Process., 2014)

Masking property of quantum random cipher with phase mask encryption. - Masaki Sohma; Osamu Hirota (Quantum Inf. Process., 2014)

Towards Quantum Enigma Cipher. - Osamu Hirota (CoRR, 2015)

Towards Quantum Enigma Cipher II-A protocol based on quantum illumination-. - Osamu Hirota (CoRR, 2015)

Introduction to Semi-Classical Analysis for Digital Errors of Qubit in Quantum Processor. - Osamu Hirota (Entropy, 2021)

Quantum Stream Cipher Based on Holevo-Yuen Theory. - Masaki Sohma; Osamu Hirota (Entropy, 2022)