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  2. Qubit - Wikipedia

    en.wikipedia.org/wiki/Qubit

    In quantum computing, a qubit (/ ˈ k juː b ɪ t /) or quantum bit is a basic unit of quantum information—the quantum version of the classic binary bit physically realized with a two-state device. A qubit is a two-state (or two-level) quantum-mechanical system , one of the simplest quantum systems displaying the peculiarity of quantum mechanics.

  3. Quantum circuit - Wikipedia

    en.wikipedia.org/wiki/Quantum_circuit

    An n-qubit (reversible) quantum gate is a unitary mapping U from the space H QB(n) of n-qubit registers onto itself. Typically, we are only interested in gates for small values of n . A reversible n -bit classical logic gate gives rise to a reversible n -bit quantum gate as follows: to each reversible n -bit logic gate f corresponds a quantum ...

  4. Quantum computing - Wikipedia

    en.wikipedia.org/wiki/Quantum_computing

    Any quantum computation (which is, in the above formalism, any unitary matrix of size over qubits) can be represented as a network of quantum logic gates from a fairly small family of gates. A choice of gate family that enables this construction is known as a universal gate set , since a computer that can run such circuits is a universal ...

  5. Quantum teleportation - Wikipedia

    en.wikipedia.org/wiki/Quantum_teleportation

    In matters relating to quantum information theory, it is convenient to work with the simplest possible unit of information: the two-state system of the qubit.The qubit functions as the quantum analog of the classic computational part, the bit, as it can have a measurement value of both a 0 and a 1, whereas the classical bit can only be measured as a 0 or a 1.

  6. This is what a 50-qubit quantum computer looks like - AOL

    www.aol.com/news/2018-01-09-this-is-what-a-50...

    Last November, IBM unveiled the world's first 50-qubit quantum computer. It lives in a laboratory, inside a giant white case, with pumps to keep it cool and some traditional computers to manage ...

  7. Superconducting quantum computing - Wikipedia

    en.wikipedia.org/wiki/Superconducting_quantum...

    A qubit is a generalization of a bit (a system with two possible states) capable of occupying a quantum superposition of both states. A quantum gate, on the other hand, is a generalization of a logic gate describing the transformation of one or more qubits once a gate is applied given their initial state.

  8. Quantum logic gate - Wikipedia

    en.wikipedia.org/wiki/Quantum_logic_gate

    Common quantum logic gates by name (including abbreviation), circuit form(s) and the corresponding unitary matrices. In quantum computing and specifically the quantum circuit model of computation, a quantum logic gate (or simply quantum gate) is a basic quantum circuit operating on a small number of qubits.

  9. QuantWare will build you a custom 25-qubit quantum ... - AOL

    www.aol.com/news/quantware-build-custom-25-qubit...

    It's still very early days for quantum computing, but even so, we're already seeing early signs of hardware and an ecosystem that's starting to resemble the classical computing space, with ...