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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. Quantum logic gates are the building blocks of quantum circuits, like classical logic gates are for conventional digital circuits.
Mar 21, 2018 · Learn how quantum logic gates use superposition and entanglement to process multiple possibilities simultaneously. Find out how NIST researchers create and manipulate ions as qubits and perform quantum computations.
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.
Jan 30, 2024 · Quantum logic gates are the fundamental building blocks of quantum circuits. They are used to manipulate the quantum state of qubits and perform quantum operations. Reversible gates are a type of quantum logic gate that can be undone, allowing for the recovery of the initial state.
Mar 1, 2018 · Fast and high-fidelity two-qubit logic gates are demonstrated by using amplitude-shaped laser pulses to ensure that the gate operation is insensitive to the optical phase of the pulses.
- V. M. Schäfer, C. J. Ballance, K. Thirumalai, L. J. Stephenson, T. G. Ballance, A. M. Steane, D. M. ...
- 2018
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May 26, 2023 · To achieve the large-scale quantum photonic circuits, the applied quantum logic gates should be as small as possible for the high-density integration on chips. Here, we report the implementation of super-compact universal quantum logic gates on silicon chips by the method of inverse design.
Feb 26, 2018 · A logic gate, whether classical or quantum, is any physical structure or system that takes a set of binary inputs (whether 0s and 1s, apples and oranges, spin-up electrons and spin-down electrons, you name it) and spits out a single binary output: a 1, an orange, a spin-up electron, or even one of two states of superposition.
