Experimental study for Yuen-Kim protocol of quantum key distribution with unconditional secure
O.Hirota, K.Kato, and M.Sohma
TL;DR
This paper presents an experimental simulation of the Yuen-Kim quantum key distribution protocol using an intensity modulation/direct detection optical fiber system, demonstrating its practical security features.
Contribution
It provides the first experimental implementation of the Yuen-Kim protocol with simplified encoding in an IMDD optical fiber system.
Findings
Successful simulation of the protocol's practical features
Implementation of simplified M-ary intensity modulation scheme
Demonstration of unconditional security in optical fiber communication
Abstract
In this report, we simulate practical feature of Yuen-Kim protocol for quantum key distribution with unconditional secure. In order to demonstrate them experimentally by intensity modulation/direct detection(IMDD) optical fiber communication system, we use simplified encoding scheme to guarantee security for key information(1 or 0). That is, pairwise M-ary intensity modulation scheme is employed. Furthermore, we give an experimental implementation of YK protocol based on IMDD.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Mechanics and Applications · Quantum optics and atomic interactions