Last mentioned: Mar 18, 2026
Award Ceremony
Formal recognition of their contributions to quantum information theory.
Turing Award Announcement
ACM names Bennett and Brassard as recipients of the highest honor in computer science.
Quantum Teleportation
The duo, with collaborators, co-invents the concept of quantum teleportation.
BB84 Protocol Published
Bennett and Brassard propose the first quantum key distribution protocol.
The Association for Computing Machinery has awarded the 2025 Turing Award to Charles Bennett and Gilles Brassard for their foundational work in quantum cryptography. Their invention of the BB84 protocol established a new paradigm of security based on the laws of physics rather than mathematical complexity.
This page surfaces every story mentioning BB84 across our ai coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running ai beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where BB84 was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |