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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.
Qiskit is made of elements that work together to enable quantum computing. The central goal of Qiskit is to build a software stack that makes it easier for anyone to use quantum computers, regardless of their skill level or area of interest; Qiskit allows users to design experiments and applications and run them on real quantum computers and/or classical simulators.
Open Quantum Assembly Language (OpenQASM; pronounced open kazm) [1] is a programming language designed for describing quantum circuits and algorithms for execution on quantum computers. Language [ edit ]
Qubits are used in quantum circuits and quantum algorithms composed of quantum logic gates to solve computational problems, where they are used for input/output and intermediate computations. A physical qubit is a physical device that behaves as a two-state quantum system, used as a component of a computer system.
from ket import * a, b = quant (2) # Allocate two quantum bits H (a) # Put qubit `a` in a superposition cnot (a, b) # Entangle the two qubits in the Bell state m_a = measure (a) # Measure qubit `a`, collapsing qubit `b` as well m_b = measure (b) # Measure qubit `b` # Assert that the measurement of both qubits will always be equal assert m_a ...
Arbitrary single-qubit phase shift gates () are natively available for transmon quantum processors through timing of microwave control pulses. [13] It can be explained in terms of change of frame. [14] [15] As with any single qubit gate one can build a controlled version of the phase shift gate.
As of December 2023, the concept has been used to demonstrate a 48 logical qubit processor. [6] [7] To perform computation, the atoms are first trapped in a magneto-optical trap. [6] Qubits are then encoded in the energy levels of the atoms. Initialization and operation of the computer is performed via the application of lasers on the qubits. [8]
Quantum programs in Cirq are represented by "Circuit" which is made up of a series of "Moments" representing slices of quantum gates that should be applied at the same time. [4] The programs can be executed on local simulators [ 5 ] or against hardware supplied by IonQ , Pasqal , [ 6 ] Rigetti , and Alpine Quantum Technologies [ 7 ]