Skip to main content

Scalable high-rate, high-dimensional time-bin encoding quantum key distribution

Publication ,  Journal Article
Islam, NT; Lim, CCW; Cahall, C; Qi, B; Kim, J; Gauthier, DJ
Published in: Quantum Science and Technology
June 11, 2019

We propose and experimentally demonstrate a new scheme for measuring high-dimensional phase states using a two-photon interference technique, which we refer to as quantum-controlled measurement. Using this scheme, we implement a d-dimensional time-phase quantum key distribution (QKD) system and achieve secret key rates of 5.26 and 8.65 Mbps using d = 2 and d = 8 quantum states, respectively, for a 4 dB channel loss, illustrating that high-dimensional time-phase QKD protocols are advantageous for low-loss quantum channels. This work paves the way for practical high-dimensional QKD protocols for metropolitan-scale systems. Furthermore, our results apply equally well for other high-dimensional protocols, such as those using the spatial degree-of-freedom with orbital angular momentum states being one example.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Quantum Science and Technology

DOI

EISSN

2058-9565

Publication Date

June 11, 2019

Volume

4

Issue

3

Related Subject Headings

  • 5108 Quantum physics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Islam, N. T., Lim, C. C. W., Cahall, C., Qi, B., Kim, J., & Gauthier, D. J. (2019). Scalable high-rate, high-dimensional time-bin encoding quantum key distribution. Quantum Science and Technology, 4(3). https://doi.org/10.1088/2058-9565/ab21a4
Islam, N. T., C. C. W. Lim, C. Cahall, B. Qi, J. Kim, and D. J. Gauthier. “Scalable high-rate, high-dimensional time-bin encoding quantum key distribution.” Quantum Science and Technology 4, no. 3 (June 11, 2019). https://doi.org/10.1088/2058-9565/ab21a4.
Islam NT, Lim CCW, Cahall C, Qi B, Kim J, Gauthier DJ. Scalable high-rate, high-dimensional time-bin encoding quantum key distribution. Quantum Science and Technology. 2019 Jun 11;4(3).
Islam, N. T., et al. “Scalable high-rate, high-dimensional time-bin encoding quantum key distribution.” Quantum Science and Technology, vol. 4, no. 3, June 2019. Scopus, doi:10.1088/2058-9565/ab21a4.
Islam NT, Lim CCW, Cahall C, Qi B, Kim J, Gauthier DJ. Scalable high-rate, high-dimensional time-bin encoding quantum key distribution. Quantum Science and Technology. 2019 Jun 11;4(3).

Published In

Quantum Science and Technology

DOI

EISSN

2058-9565

Publication Date

June 11, 2019

Volume

4

Issue

3

Related Subject Headings

  • 5108 Quantum physics