def qrand(nbits):
circ = QuantumCircuit(1, 1)
circ.h(0)
circ.measure(0, 0)
val = simulate(circ, shots=nbits, get='memory')
b = ''
for i in range(nbits):
b += str(val[i])
integ = int(b, 2)
return integ
def propagate_statevector(vec, qc):
"""
Take an initial statevector 'vec', initialize
a circuit with this statevector, execute the
quantum circuit 'qc' on it and return the new
statevector.
"""
qc_i = QuantumCircuit(2, 0)
qc_i.initialize(vec)
return simulate(qc_i + qc, get='statevector')
def qrand(nbits):
# generates nbits real random numbers using quantum state measurements in qiskit.
circ = QuantumCircuit(1, 1)
circ.h(0)
circ.measure(0, 0)
val = simulate(circ, shots=nbits, get='memory')
b = ''
for i in range(nbits):
b += str(val[0])
integ= int(b, 2)
return integ
def get_random_initial_state(self):
qc = QuantumCircuit(2, 0)
qc.data = [random.choice(list(self.gates.values())) for _ in range(self.length)]
return simulate(qc, get='statevector')