Cirq

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An Open Source Framework for Programming Quantum Computers

Cirq is a Python software library for writing, manipulating, and optimizing quantum circuits, and then running them on quantum computers and quantum simulators. Cirq provides useful abstractions for dealing with today’s noisy intermediate-scale quantum computers, where details of the hardware are vital to achieving state-of-the-art results.

GitHub - quantumlib/Cirq: A Python framework for creating, editing, and invoking Noisy Intermediate-Scale Quantum (NISQ) circuits.

import cirq
 
# Pick a qubit.
qubit = cirq.GridQubit(0, 0)
 
# Create a circuit
circuit = cirq.Circuit(
    cirq.X(qubit)**0.5,  # Square root of NOT.
    cirq.measure(qubit, key='m')  # Measurement.
)
print("Circuit:")
print(circuit)
 
# Simulate the circuit several times.
simulator = cirq.Simulator()
result = simulator.run(circuit, repetitions=20)
print("Results:")
print(result)