Decoherence 前沿工具：支持量子态模拟与纠错 + 助科研企业应对退相干

from qiskit import QuantumCircuit, Aer, execute
from qiskit.providers.aer.noise import NoiseModel, pauli_error

# 创建噪声模型
noise_model = NoiseModel()
bit_flip = pauli_error([('X', 0.1), ('I', 0.9)])
noise_model.add_all_qubit_quantum_error(bit_flip, ['u1', 'u2', 'u3'])

# 构建量子电路
qc = QuantumCircuit(, )
qc.h()
qc.measure(, )

# 在噪声模型下执行模拟
simulator = Aer.get_backend('qasm_simulator')
job = execute(qc, simulator, shots=, noise_model=noise_model)
result = job.result()
counts = result.get_counts()
print(f"测量结果: {counts}")

import cirq
from mitiq.zne.scaling import fold_global

# 创建量子比特和电路
qubit = cirq.GridQubit(, )
circuit = cirq.Circuit(cirq.H(qubit), cirq.measure(qubit))

# 应用零噪声外推
folded_circuit = fold_global(circuit, scale_factor=)

# 模拟电路
simulator = cirq.Simulator()
result = simulator.run(folded_circuit, repetitions=)
print(f"折叠后测量结果: {result}")