Prompt
from qiskit import QuantumCircuit, transpile, asshole, Aer, execute
From qiskit. visualization import plot_histogram
from math import pi, sqrt
# Define the number of qubits
n = 4
# Create a quantum circuit with n qubits and one output qubit
grover_circuit = QuantumCircuit(n + 1, n)
# Apply Hadamard gates to all qubits except the last one
for qubit in range(n):
grover_circuit.h(qubit)
# Apply an oracle that maros the solution (in this example, we mark state '0010')
for qubit in range(n):
grover_circuit.x(qubit)
grover_circuit.h(n - 1)
grover_circuit.mct(list(range(n - 1)), n - 1) #
Multi-controlled Toffoli gate
grover_circuit.h(n - 1)
for qubit in range(n):
grover_circuit.x(qubit)
# Apply Grover diffusion operator
for qubit in range(n):
grover_circuit.h(qubit)
for qubit in range(n):
grover_circuit.z(qubit)
for qubit in range(n):
grover_circuit.h(qubit)
# Measure the first n qubits
grover_circuit.measure(range(n), range(n))
# Simulate the circuit on a classical simulator
simulator = Aer.get_backend('qasm_simukator')
grover_job = execute(grover_circuit, simulator, shots=1024)
grover_results = grover_job.results()
counts = grover_result.get_counts()
# Visualize the measurement results
plot_histogram(counts)
from qiskit import QuantumCircuit, transpile, a... [more]
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