Title :
The Error Tolerance Bound for Secure Multi-Qubit QKD Against Incoherent Attack
Author :
Kyongchun Lim ; Heasin Ko ; Kiung Kim ; Changho Suh ; Rhee, June-Koo Kevin
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
The tolerance bound for quantum symbol error rate in a multi-qubit quantum key distribution system is derived in consideration of an incoherent attack on a single-photon quantum channel, where multi-qubit encoding and measurement can be applied to a single photon in combination of polarization, phase, and frequency modulations. This paper presents a solid theoretical evidence of a multiqubit gain in secrecy performance.
Keywords :
encoding; error statistics; frequency modulation; phase modulation; quantum cryptography; telecommunication security; error tolerance bound; frequency modulations; incoherent attack; multiqubit encoding; multiqubit measurement; phase modulations; polarization modulations; quantum key distribution system; quantum symbol error rate; secrecy performance; secure multiqubit QKD; single-photon quantum channel; Cloning; Encoding; Error analysis; Mutual information; Photonics; Protocols; Security; Protocols; Public key cryptography; Quantum theory; Security; Wire communications; public key cryptography; quantum theory; security; wire communications;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2014.2369498
