Quantum Information Science
BB84协议
BB84 protocolA quantum key distribution (QKD) protocol that uses two non-orthogonal bases to encode bits in the polarization of single photons. / 一种量子密钥分发（QKD）协议，使用两个非正交基将比特编码在单光子的偏振中。
- Knowledge type
- 数学理论
- First proposed or discovered
- 1984
- Proposer
- Charles H. Bennett, Gilles Brassard
- Creator
- 农场主
- Last updated
- 2026-10-28 18:02:40
Sub-knowledge points
Quantum superpositionNo-cloning theoremBasis reconciliation
Higher-order knowledge points
Main parameters and performance indicators
basis: Rectilinear (0°, 90°) or Diagonal (45°, 135°)basis choice: Randommeasurement: Random basis selectionsifting: Public discussion to keep matching bases
Open problems
Device-independent QKDLong-distance secure transmissionHigh-speed implementation
Related literature
ranked by community starsPolarization-encoded BB84 over a 56 dB loss channel using superconducting nanostrip single-photon detectorsOpen source
Related products and links
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Creation and modification trail
1 recordsRecord title: BB84 protocol.
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