Quantum Internet
Imagine a world where your data is not just encrypted but physically protected by the laws of physics. A world where quantum computers across continents can work together in perfect….
Tag: Quantum communication
Quantum Networks
Imagine a future where information flows not just at lightning speed but also with absolute security, where computers on different continents operate in perfect quantum sync, and where scientific experiments….
Entanglement Swapping
Before diving into entanglement swapping, it’s important to understand quantum entanglement. Entanglement is a unique quantum phenomenon where two or more particles become connected in such a way that the….
Quantum Repeaters
Quantum repeaters are critical components in long-distance quantum communication systems. They play a similar role to classical repeaters in fiber-optic networks, but with a key difference: they are designed to….
Quantum Teleportation
Quantum teleportation is one of the most fascinating phenomena in quantum mechanics. Despite the science-fiction name, it doesn’t involve transporting matter or people from one place to another. Instead, it….
Security Proofs in Quantum Cryptography
A security proof in cryptography is a formal demonstration that a cryptographic protocol is secure under certain assumptions. In classical cryptography, these assumptions are often based on the hardness of….
Quantum Coin Flipping
Quantum Coin Flipping (QCF) is a cryptographic protocol that allows two parties—who don’t trust each other—to agree on a random binary outcome (heads or tails, or 0 or 1), using….
Device-Independent QKD
Device-Independent Quantum Key Distribution (DI-QKD) is an advanced form of quantum key distribution that provides the highest level of security, even if the devices used in the protocol are untrusted….
E91 Protocol
The E91 Protocol is a Quantum Key Distribution (QKD) method proposed by physicist Artur Ekert in 1991. It was a significant development in quantum cryptography because it uses quantum entanglement….
BB84 Protocol
The BB84 Protocol, proposed by Charles Bennett and Gilles Brassard in 1984, is the first and most widely known Quantum Key Distribution (QKD) method. It allows two parties—commonly called Alice….