Decoupling error correction from privacy amplification in quantum key distribution
US7570767B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Mar 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0858
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus (1) and method for decoupling error correction from privacy amplification in a quantum key distribution (QKD 100) system includes two or more computer systems (102, 108) linked by quantum and classical channels (120, 122) where each computer system determines a generalized error syndrome associated with quantum communication between the systems, encrypts the generalized error syndrome using a sequence of values, and communicates the encrypted generalized error syndrome via a classical channel (128) to the other system, which uses the encrypted generalized error syndromes to compute error correction for the quantum transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.