arXiv subjects

Hagiwara Manabu

Publications and source records attributed to Hagiwara Manabu.

2 recordsLinked to original sources

arXiv2006

A Quantum Key Distribution Protocol with Selecting Announced States, Robust against Photon Number Splitting Attacks

We propose a new class of quantum key distribution protocol, that ended up to be robust against photon number splitting attacks in the weak laser pulse implementations. This protocol comprises of BB84 protocol and SARG protocol, especially in aspects of controlling classical sifting procedures of two protocols. The protocol is more secure than both of BB84 protocol and SARG protocol, and the ultimate limit of robustness in the proposed protocol expands as well than both of them.

quant-ph↗

arXiv2004

Non stabilizer Clifford codes with qupits

Clifford codes can be understood as a generalization of stabilizer codes. To show the existence of a true Clifford code which is better than any stabilizer code is a well known open problem in the theory of Clifford codes. One of the main difficulties in solving this problem is that we know only about 110 examples of codes which are Clifford but not stabilizer codes. In this paper, we obtain infinite examples of Clifford codes which are not stabilizer codes. We expect our examples to be useful in the study of Clifford codes.

quant-ph↗