关于qiskit版本>1.0.0,execute函数被替换
关于下列代码,当qiskit版本大于1时,无法使用execute函数,定义transpiled_circuit和run函数来替换。
import numpy as np
from qiskit import QuantumCircuit, Aer, execute
def calculate_hydrogen_energy():
# Definir el circuito cuántico
circuit = QuantumCircuit(2, 2)
circuit.h(0)
circuit.cx(0, 1)
circuit.measure([0, 1], [0, 1])
# Simular el circuito cuántico
simulator = Aer.get_backend('qasm_simulator')
job = execute(circuit, simulator, shots=1000)
result = job.result()
counts = result.get_counts(circuit)
更新的代码如下,transpiler使用文档参考(https://docs.quantum.ibm.com/api/qiskit/transpiler)
import numpy as np
from qiskit import QuantumCircuit, transpile
from qiskit_aer import Aer
def calculate_hydrogen_energy():
# Define the quantum circuit
circuit = QuantumCircuit(2, 2)
circuit.h(0)
circuit.cx(0, 1)
circuit.measure([0, 1], [0, 1])
# Simulate the quantum circuit
simulator = Aer.get_backend('qasm_simulator')
transpiled_circuit = transpile(circuit, simulator)
job =simulator.run(transpiled_circuit, shots=1000)
result = job.result()
counts = result.get_counts(circuit)
# Example calculation (for demonstration purposes)
# Note: You might need an actual calculation for the hydrogen molecule’s energy.
energy = counts.get("00", 0) - counts.get("11", 0) # Placeholder for energy calculation
return energy