def U_theta(theta, N):
"""
Quantum Neural Network
"""
# 按照量子比特数量/网络宽度初始化量子神经网络
cir = UAnsatz(N)
# 调用内置的量子神经网络模板
cir.universal_2_qubit_gate(theta)
# 返回量子神经网络所模拟的酉矩阵 U
return cir.U
def U_theta(theta, N):
"""
Quantum Neural Network
"""
# Initialize the quantum neural network by the number of qubits (width of the network)
cir = UAnsatz(N)
# Use a built-in QNN template
cir.universal_2_qubit_gate(theta, [0, 1])
# Return the Unitary matrix simulated by QNN
return cir.U