Quantum key distribution using a thermal source
US11258594B2 · kind B2 · utility
1Cited by
10References
22Claims
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Key dates
| Filing date | Nov 21, 2018 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Oct 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A passive continuous-variable quantum key distribution scheme, where Alice splits the output of a thermal source into two spatial modes, measures one locally and transmits the other mode to Bob after applying attenuation. A secure key can be established based on measurements of the two modes without the use of a random number generator or an optical modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.