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  2. List of quantum logic gates - Wikipedia

    en.wikipedia.org/wiki/List_of_quantum_logic_gates

    In gate-based quantum computing, various sets of quantum logic gates are commonly used to express quantum operations. The following tables list several unitary quantum logic gates, together with their common name, how they are represented, and some of their properties.

  3. Quantum logic gate - Wikipedia

    en.wikipedia.org/wiki/Quantum_logic_gate

    Checking if a set of quantum gates is universal can be done using group theory methods [18] and/or relation to (approximate) unitary t-designs [19] Some universal quantum gate sets include: The rotation operators R x (θ), R y (θ), R z (θ), the phase shift gate P(φ) [c] and CNOT are commonly used to form a universal quantum gate set. [20] [d]

  4. Quantum circuit - Wikipedia

    en.wikipedia.org/wiki/Quantum_circuit

    Other examples of quantum logic gates derived from classical ones are the Toffoli gate and the Fredkin gate. However, the Hilbert-space structure of the qubits permits many quantum gates that are not induced by classical ones. For example, a relative phase shift is a 1 qubit gate given by multiplication by the phase shift operator:

  5. Controlled NOT gate - Wikipedia

    en.wikipedia.org/wiki/Controlled_NOT_gate

    The classical analog of the CNOT gate is a reversible XOR gate. How the CNOT gate can be used (with Hadamard gates) in a computation.. In computer science, the controlled NOT gate (also C-NOT or CNOT), controlled-X gate, controlled-bit-flip gate, Feynman gate or controlled Pauli-X is a quantum logic gate that is an essential component in the construction of a gate-based quantum computer.

  6. Toffoli gate - Wikipedia

    en.wikipedia.org/wiki/Toffoli_gate

    The Toffoli gate can be realized by five two-qubit quantum gates, [5] but it can be shown that it is not possible using fewer than five. [6] Another universal gate, the Deutsch gate, can be realized by five optical pulses with neutral atoms. [7] The Deutsch gate is a universal gate for quantum computing. [8]

  7. Wall Street Analysts Say This Quantum Computing Stock ... - AOL

    www.aol.com/wall-street-analysts-quantum...

    Image source: Getty Images. Taking a different approach to quantum computing. ... The problem with gate-based quantum chips is noise. Since qubits aren't very stable, subtle interactions with the ...

  8. Cirac–Zoller controlled-NOT gate - Wikipedia

    en.wikipedia.org/wiki/Cirac–Zoller_controlled...

    The Cirac–Zoller controlled-NOT gate is an implementation of the controlled-NOT (CNOT) quantum logic gate using cold trapped ions that was proposed by Ignacio Cirac and Peter Zoller in 1995 and represents the central ingredient of the Cirac–Zoller proposal for a trapped-ion quantum computer. [1]

  9. My Top Quantum Computing Stock to Buy Right Now - AOL

    www.aol.com/top-quantum-computing-stock-buy...

    For example, Rigetti Computing and Quantum Computing shares have soared more than 1,000% over the past year. A profitable quantum player Now, let's check out my favorite quantum computing stock to ...