Proof-of-principle demonstration of measurement-device-independent quantum key distribution using polarization qubits

被引：208

作者：

Ferreira da Silva, T. ^{[1
,2
]}

Vitoreti, D. ^{[1
]}

Xavier, G. B. ^{[3
,4
,5
]}

do Amaral, G. C. ^{[1
]}

Temporao, G. P. ^{[1
]}

von der Weid, J. P. ^{[1
]}

机构：

[1] Pontifical Catholic Univ Rio de Janeiro, Ctr Telecommun Studies, BR-22451900 Rio De Janeiro, RJ, Brazil

[2] Natl Inst Metrol Qual & Technol, Opt Metrol Div, BR-25250020 Duque De Caxias, RJ, Brazil

[3] Univ Concepcion, Dept Ingn Elect, Concepcion, Chile

[4] Univ Concepcion, Ctr Opt & Photon, Concepcion, Chile

[5] Univ Concepcion, MSI Nucleus Adv Opt, Concepcion, Chile

来源：

PHYSICAL REVIEW A | 2013年 / 88卷 / 05期

关键词：

SINGLE-PHOTON DETECTORS; CRYPTOGRAPHY; SYSTEMS; CRYPTOSYSTEMS; COMMUNICATION; INTERFERENCE; SECURITY; ATTACK; STATES; FIBER;

D O I：

10.1103/PhysRevA.88.052303

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We perform a proof-of-principle demonstration of the measurement-device-independent quantum key distribution protocol using weak coherent states and polarization-encoded qubits over two optical fiber links of 8.5 km each. Each link was independently stabilized against polarization drifts using a full-polarization control system employing two wavelength-multiplexed control channels. A linear-optics-based polarization Bell-state analyzer was built into the intermediate station, Charlie, which is connected to both Alice and Bob via the optical fiber links. Using decoy states, a lower bound for the secret-key generation rate of 1.04x10(-6) bits/pulse is computed.

引用

页数：7

共 41 条

[1] Device-independent security of quantum cryptography against collective attacks [J].