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    https://en.wikipedia.org › wiki › Quantum_computing

    Quantum computing - Wikipedia

    • A quantum circuit diagram implementing a Toffoli gate from more primitive gates. A quantum gate array decomposes computation into a sequence of few-qubit quantum gates. A quantum computation can be described as a network of quantum logic gates and measurements. ... The number of possible answers to check is the same as the number of inputs to ...… 展开

    Overview

    A quantum computer is a computer that exploits quantum mechanical phenomena. On small scales, physical matter exhibits properties of both particles and waves, and quantum computing leverages this behavior using specialize… 展开

    History

    For many years, the fields of quantum mechanics and computer science formed distinct academic communities. Modern quantum theory developed in the 1920s to explain perplexing physical phenomena observed at ato… 展开

    Quantum information processing

    Computer engineers typically describe a modern computer's operation in terms of classical electrodynamics. Within these "classical" computers, some components (such as semiconductors and random number generators) … 展开

    Communication

    Quantum cryptography enables new ways to transmit data securely; for example, quantum key distribution uses entangled quantum states to establish secure cryptographic keys. When a sender and receiver exchan… 展开

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