Quantum Computation

Some articles on quantum computation, computation, quantum:

BQP - Quantum Computation
... Usually, computation on a quantum computer ends with a measurement ... This leads to a collapse of quantum state to one of the basis states ... It can be said that the quantum state is measured to be in the correct state with high probability ...
Quantum Computer - Operation
... List of unsolved problems in physics Is a universal quantum computer sufficient to efficiently simulate an arbitrary physical system? While a classical three-bit state and a quantum three-qubit state ... In classical randomized computation, the system evolves according to the application of stochastic matrices, which preserve that the probabilities add up to ... In quantum computation, on the other hand, allowed operations are unitary matrices, which are effectively rotations (they preserve that the sum of the squares add up to ...
Artur Ekert - Research
... Artur Ekert's research extends over most aspects of information processing in quantum-mechanical systems, with a focus on quantum cryptography and quantum ... Building on the idea of quantum non-locality and Bell's inequalities he introduced entanglement-based quantum key distribution in his 1991 paper which ... in the proof-of-principle experimental quantum key distribution, introducing parametric down-conversion, phase encoding and quantum interferometry into the repertoire of cryptography ...
Anton Zeilinger - Work - Quantum Entanglement
... In the late 1980s, Anton Zeilinger became interested in quantum entanglement ... and opened up the new fields of quantum teleportation, quantum information, quantum communication and quantum cryptography ... state) is fundamental for quantum physics, as it provides the most succinct contradiction between local realism and the predictions of quantum mechanics ...

Famous quotes containing the words computation and/or quantum:

    I suppose that Paderewski can play superbly, if not quite at his best, while his thoughts wander to the other end of the world, or possibly busy themselves with a computation of the receipts as he gazes out across the auditorium. I know a great actor, a master technician, can let his thoughts play truant from the scene ...
    Minnie Maddern Fiske (1865–1932)

    The receipt to make a speaker, and an applauded one too, is short and easy.—Take of common sense quantum sufficit, add a little application to the rules and orders of the House, throw obvious thoughts in a new light, and make up the whole with a large quantity of purity, correctness, and elegancy of style.
    Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)