Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems
Measurement-device-independent (MDI) quantum key distribution (QKD) employs an untrusted relay to prevent the receiver from side-channel attacks commonly encountered in earlier QKD protocols. Conventional MDI QKD systems rely entirely on bulky and expensive optical setups that present great challeng...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/145454 |
| _version_ | 1826126655419056128 |
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| author | Cao, Lin Luo, W. Wang, Yunxiang Zou, J. Yan, R. D. Cai, H. Zhang, Yichen Hu, X. L. Jiang, C. Fan, W. J. Zhou, X. Q. Dong, B. Luo, X. S. Lo, G. Q. Wang, Y. X. Xu, Z. W. Sun, S. H. Wang, X. B. Hao, Y. L. Jin, Y. F. Kwong, D. L. Kwek, Leongchuan Liu, Aiqun |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Cao, Lin Luo, W. Wang, Yunxiang Zou, J. Yan, R. D. Cai, H. Zhang, Yichen Hu, X. L. Jiang, C. Fan, W. J. Zhou, X. Q. Dong, B. Luo, X. S. Lo, G. Q. Wang, Y. X. Xu, Z. W. Sun, S. H. Wang, X. B. Hao, Y. L. Jin, Y. F. Kwong, D. L. Kwek, Leongchuan Liu, Aiqun |
| author_sort | Cao, Lin |
| collection | NTU |
| description | Measurement-device-independent (MDI) quantum key distribution (QKD) employs an untrusted relay to prevent the receiver from side-channel attacks commonly encountered in earlier QKD protocols. Conventional MDI QKD systems rely entirely on bulky and expensive optical setups that present great challenges for system scaling and integration. In this work, an all-chip-based MDI QKD system including two transmitter chips and one server chip is demonstrated using integrated silicon photonic technology. The system is capable of generating polarization-encoded weak coherent states with polarization extinction ratios of over 20 dB, sufficient for low-error MDI QKD. In the proof-of-concept experiment, the chip-based MDI QKD system generates a key rate per pulse of 2.923×10−6 over a distance corresponding to a 50-km standard fiber with 25% detection efficiency and a predicted distance of 120 km with 85% detection efficiency. Our proof-of-concept prototype makes a giant step forward towards fully chip-based MDI QKD systems and highly integrated quantum communication networks in the near future with its high scalability and cost effectiveness. |
| first_indexed | 2024-10-01T06:55:54Z |
| format | Journal Article |
| id | ntu-10356/145454 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:55:54Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1454542020-12-22T04:12:30Z Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems Cao, Lin Luo, W. Wang, Yunxiang Zou, J. Yan, R. D. Cai, H. Zhang, Yichen Hu, X. L. Jiang, C. Fan, W. J. Zhou, X. Q. Dong, B. Luo, X. S. Lo, G. Q. Wang, Y. X. Xu, Z. W. Sun, S. H. Wang, X. B. Hao, Y. L. Jin, Y. F. Kwong, D. L. Kwek, Leongchuan Liu, Aiqun School of Electrical and Electronic Engineering Quantum Science and Engineering Centre (QSec) Science::Physics Integrated Optics Optical Quantum Information Processing Measurement-device-independent (MDI) quantum key distribution (QKD) employs an untrusted relay to prevent the receiver from side-channel attacks commonly encountered in earlier QKD protocols. Conventional MDI QKD systems rely entirely on bulky and expensive optical setups that present great challenges for system scaling and integration. In this work, an all-chip-based MDI QKD system including two transmitter chips and one server chip is demonstrated using integrated silicon photonic technology. The system is capable of generating polarization-encoded weak coherent states with polarization extinction ratios of over 20 dB, sufficient for low-error MDI QKD. In the proof-of-concept experiment, the chip-based MDI QKD system generates a key rate per pulse of 2.923×10−6 over a distance corresponding to a 50-km standard fiber with 25% detection efficiency and a predicted distance of 120 km with 85% detection efficiency. Our proof-of-concept prototype makes a giant step forward towards fully chip-based MDI QKD systems and highly integrated quantum communication networks in the near future with its high scalability and cost effectiveness. Ministry of Education (MOE) National Research Foundation (NRF) Published version This work is supported by the Singapore Ministry of Education (MOE) Tier 3 grant (No. MOE2017-T3-1-001), the Singapore National Research Foundation (NRF) National Natural Science Foundation of China (NSFC) joint grant (No. NRF2017NRF-NSFC002-014), and the Singapore National Research Foundation under the Competitive Research Program (No. NRF-CRP13-2014-01). 2020-12-22T04:12:30Z 2020-12-22T04:12:30Z 2020 Journal Article Cao, L., Luo, W., Wang, Y., Zou, J., Yan, R. D., Cai, H., . . . Liu, A. (2020). Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems. Physical Review Applied, 14(1), 011001-. doi:10.1103/PhysRevApplied.14.011001 2331-7019 https://hdl.handle.net/10356/145454 10.1103/PhysRevApplied.14.011001 1 14 en MOE2017-T3-1-001 NRF-CRP13-2014-01 Physical Review Applied © 2020 American Physical Society (APS). All rights reserved. This paper was published in Physical Review Applied and is made available with permission of American Physical Society (APS). application/pdf |
| spellingShingle | Science::Physics Integrated Optics Optical Quantum Information Processing Cao, Lin Luo, W. Wang, Yunxiang Zou, J. Yan, R. D. Cai, H. Zhang, Yichen Hu, X. L. Jiang, C. Fan, W. J. Zhou, X. Q. Dong, B. Luo, X. S. Lo, G. Q. Wang, Y. X. Xu, Z. W. Sun, S. H. Wang, X. B. Hao, Y. L. Jin, Y. F. Kwong, D. L. Kwek, Leongchuan Liu, Aiqun Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems |
| title | Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems |
| title_full | Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems |
| title_fullStr | Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems |
| title_full_unstemmed | Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems |
| title_short | Chip-based measurement-device-independent quantum key distribution using integrated silicon photonic systems |
| title_sort | chip based measurement device independent quantum key distribution using integrated silicon photonic systems |
| topic | Science::Physics Integrated Optics Optical Quantum Information Processing |
| url | https://hdl.handle.net/10356/145454 |
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