Continuous-variable quantum key distribution field-test with true local oscillator
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866909168596680704 |
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| author | Williams, Brian P. Qi, Bing Alshowkan, Muneer Evans, Philip G. Peters, Nicholas A. |
| author_facet | Williams, Brian P. Qi, Bing Alshowkan, Muneer Evans, Philip G. Peters, Nicholas A. |
| contents | Continuous-variable quantum key distribution (CV-QKD) using a true local (located at the receiver) oscillator (LO) has been proposed to remove any possibility of side-channel attacks associated with transmission of the LO as well as reduce the cross-pulse contamination. Here we report an implementation of true LO CV-QKD using "off-the-shelf" components and conduct QKD experiments using the fiber optical network at Oak Ridge National Laboratory. A phase reference and quantum signal are time multiplexed and then wavelength division multiplexed with the classical communications which "coexist" with each other on a single optical network fiber. This is the first demonstration of CV-QKD with a receiver-based true LO over a deployed fiber network, a crucial step for its application in real-world situations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_03959 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Continuous-variable quantum key distribution field-test with true local oscillator Williams, Brian P. Qi, Bing Alshowkan, Muneer Evans, Philip G. Peters, Nicholas A. Quantum Physics Continuous-variable quantum key distribution (CV-QKD) using a true local (located at the receiver) oscillator (LO) has been proposed to remove any possibility of side-channel attacks associated with transmission of the LO as well as reduce the cross-pulse contamination. Here we report an implementation of true LO CV-QKD using "off-the-shelf" components and conduct QKD experiments using the fiber optical network at Oak Ridge National Laboratory. A phase reference and quantum signal are time multiplexed and then wavelength division multiplexed with the classical communications which "coexist" with each other on a single optical network fiber. This is the first demonstration of CV-QKD with a receiver-based true LO over a deployed fiber network, a crucial step for its application in real-world situations. |
| title | Continuous-variable quantum key distribution field-test with true local oscillator |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2309.03959 |