Feasibility of free space quantum key distribution with coherent polarization states
We demonstrate for the first time the feasibility of free space quantum key distribution with continuous variables under real atmospheric conditions. More specifically, we transmit coherent polarization states over a 100 m free space channel on the roof of our institute's building. In our schem...
| Main Authors: | , , , , , |
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| Format: | Journal article |
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IOP Publishing
2009
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| _version_ | 1826279678063673344 |
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| author | Elser, D Bartley, T Heim, B Wittmann, C Sych, D Leuchs, G |
| author_facet | Elser, D Bartley, T Heim, B Wittmann, C Sych, D Leuchs, G |
| author_sort | Elser, D |
| collection | OXFORD |
| description | We demonstrate for the first time the feasibility of free space quantum key distribution with continuous variables under real atmospheric conditions. More specifically, we transmit coherent polarization states over a 100 m free space channel on the roof of our institute's building. In our scheme, signal and local oscillator (LO) are combined in a single spatial mode, which auto-compensates atmospheric fluctuations and results in an excellent interference. Furthermore, the LO acts as a spatial and spectral filter, thus allowing unrestrained daylight operation. |
| first_indexed | 2024-03-07T00:02:21Z |
| format | Journal article |
| id | oxford-uuid:76633789-3c4f-493f-a156-56f5a1b496bb |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:02:21Z |
| publishDate | 2009 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:76633789-3c4f-493f-a156-56f5a1b496bb2022-03-26T20:15:33ZFeasibility of free space quantum key distribution with coherent polarization statesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:76633789-3c4f-493f-a156-56f5a1b496bbSymplectic Elements at OxfordIOP Publishing2009Elser, DBartley, THeim, BWittmann, CSych, DLeuchs, GWe demonstrate for the first time the feasibility of free space quantum key distribution with continuous variables under real atmospheric conditions. More specifically, we transmit coherent polarization states over a 100 m free space channel on the roof of our institute's building. In our scheme, signal and local oscillator (LO) are combined in a single spatial mode, which auto-compensates atmospheric fluctuations and results in an excellent interference. Furthermore, the LO acts as a spatial and spectral filter, thus allowing unrestrained daylight operation. |
| spellingShingle | Elser, D Bartley, T Heim, B Wittmann, C Sych, D Leuchs, G Feasibility of free space quantum key distribution with coherent polarization states |
| title | Feasibility of free space quantum key distribution with coherent polarization states |
| title_full | Feasibility of free space quantum key distribution with coherent polarization states |
| title_fullStr | Feasibility of free space quantum key distribution with coherent polarization states |
| title_full_unstemmed | Feasibility of free space quantum key distribution with coherent polarization states |
| title_short | Feasibility of free space quantum key distribution with coherent polarization states |
| title_sort | feasibility of free space quantum key distribution with coherent polarization states |
| work_keys_str_mv | AT elserd feasibilityoffreespacequantumkeydistributionwithcoherentpolarizationstates AT bartleyt feasibilityoffreespacequantumkeydistributionwithcoherentpolarizationstates AT heimb feasibilityoffreespacequantumkeydistributionwithcoherentpolarizationstates AT wittmannc feasibilityoffreespacequantumkeydistributionwithcoherentpolarizationstates AT sychd feasibilityoffreespacequantumkeydistributionwithcoherentpolarizationstates AT leuchsg feasibilityoffreespacequantumkeydistributionwithcoherentpolarizationstates |