3 citations · 3 across the 7 of their papers we have counts for
7 papers
Quantum estimation theory with quantum noise control
Osamu Hirota, Masaki Sohma
Quantum estimation theory serves as one of fundamental backbones of quantum Shannon information theory and was mathematically systematized by pioneers of quantum information scienc…
Comparison of security mechanisms of Mathematical cipher, Wyner scheme, QKD, and Quantum stream cipher
Gikyu Yamamoto, Osamu Hirota
A new generation of global communications technology has been emerging. These systems, which utilize established device technologies and quantum effect devices, require ultra-high…
Quantum Shannon Information Theory -Design of communication, cipher and sensor-
Osamu Hirota
One of the key aspects of Shannon's theory is that it provides guidance for designing the most efficient systems, such as minimizing errors and clarifying the limits of coding. Suc…
Quantum stream cipher and Quantum block cipher -The Era of 100 Gbit/sec real-time encryption-
Osamu Hirota
This paper is the part-II of the previous paper and introduces the world of Yuen's concept. In the theory of cryptology, the Shannon impossibility theorem states that the upper bou…
Design of Quantum Stream Cipher: Part-I -Lifting the Shannon Impossibility Theorem-
Osamu Hirota
This paper is dedicated to the late Professor H.P. Yuen in commemoration to our 50-year friendship. He invented the concept of quantum stream cipher. It is designed based on a comp…
An improvement of optical PPM communication with high security
Osamu Hirota, Masaki Sohma
The purpose of this paper is to celebrate Sir D. Payne's 80th birthday by dedicating our latest results as a continuation of his work in optical communications. One of the importan…
A correct security evaluation of quantum key distribution
Osamu Hirota
There is no doubt that quantum key distribution is an excellent result as a science. However, this paper presents a view on quantum key distribution (QKD) wherein QKD may have a di…