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 100m free space channel on the roof of our institute's building. In our scheme...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2009
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| _version_ | 1797087982739521536 |
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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 100m 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. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. |
| first_indexed | 2024-03-07T02:43:22Z |
| format | Journal article |
| id | oxford-uuid:ab3545ee-f954-4710-9c0a-6241ee98be56 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:43:22Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:ab3545ee-f954-4710-9c0a-6241ee98be562022-03-27T03:20:25ZFeasibility of free space quantum key distribution with coherent polarization statesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ab3545ee-f954-4710-9c0a-6241ee98be56EnglishSymplectic Elements at Oxford2009Elser, 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 100m 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. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. |
| 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 |