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The Physics of Quantum Information: Quantum Cryptography, Quantum Teleportation, Quantum Computation Anton Zeilinger, Artur K. Ekert, Dirk Bouwmeester
Publisher: Springer

Entangled particles possess correlations stronger than those allowed by classical physics, and can only be described by their joint behaviour, no matter how far the two particles are located from each other. Though the team's paper was With scientists extending quantum teleportation to such distances, many are already considering the next step: zapping particles and information from an orbiting satellite to a relay station on Earth. Imagine two This feature can be used to transmit information securely between two parties (quantum cryptography) or, when generalized to many particles, to process information faster and more efficiently than possible by any classical means. Photons go for a walk in quantum computing leap Science. Quantum entanglement is the key to quantum computing, cryptography, and numerous other real-world applications of quantum mechanics. But quantum entanglement can also be used for the instantaneous swapping of information, and because the data doesn't travel through space it can't be snatched or intercepted while in transport -- the ultimate form of encryption. The security of using quantum teleportation to distribute cryptographic keys, on the other hand, is upheld by the laws of physics and has a seemingly infinite time horizon. They allow to do tasks that are impossible classically. Many applications in the field of quantum information and computation, such as quantum teleportation or quantum cryptography, exploit these powerful correlations. €�Once you disembody the state of one of particle, you can then recreate the particle in remote copy,” said physicist and computer scientist Charles Bennett of IBM, who co-authored the first paper on quantum teleportation in 1993. A group of Chinese engineers have smashed the records for quantum teleportation distance, by creating a pair of entangled photons over a distance of almost 100 kilometres. As a result, it has become very difficult to “future proof” the encryption of data, and were any major breakthrough in quantum computing to be achieved in the near future, current encryption techniques could become obsolete and encrypted data could suddenly become unprotected [3]. The new, faster teleportation process means scientists can move blocks of this quantum information around within a computer or across a network, Huntington said. The technology of quantum computing is based on the idea of extending classical information theory. Quantum computing and quantum information are two of the fastest growing and most exciting research fields in physics.