arXiv subjects

Tadamasa Kimura

Publications and source records attributed to Tadamasa Kimura.

2 recordsLinked to original sources

arXiv2004

Single-photon interference over 150-km transmission using silica-based integrated-optic interferometers for quantum cryptography

We have demonstrated single-photon interference over 150 km using time-division interferometers for quantum cryptography, which were composed of two integrated-optic asymmetric Mach-Zehnder interferometers, and balanced gated-mode photon detectors. The observed fringe visibility was more than 80% after 150-km transmission.

quant-ph↗

arXiv2003

Single-photon interference experiment over 100 km for quantum cryptography system using a balanced gated-mode photon detector

We demonstrate single-photon interference over 100 km using a balanced gated-mode photon detector and a plug & play system for quantum key distribution. The visibility with 0.1 photon/pulse was more than 80% after 100 km transmission. This corresponds to the fidelity of a quantum cryptography system of more than 90% and a QBER of less than 10%, satisfying the security criteria.

quant-ph↗