if parity01:
#Reset anc qubit
X(q[ancIdx])
CX(q[physicalIdx + 1], q[ancIdx])
CX(q[physicalIdx + 2], q[ancIdx])
parity12 = Measure(q[ancIdx])
if parity12:
#Reset anc qubit
X(q[ancIdx])
# Note: only in FTQC runtime that we can examine the measure results in realtime.
print("Parity01 =", parity01, "Parity12 =", parity12)
@qjit
def testBitflipCode(q : qreg):
H(q[0])
encodeLogicalQubit(q)
measureSyndrome(q, 0, 3)
# Apply an X error
for i in range(3):
print("Apply X error @ ", i)
X(q[i])
measureSyndrome(q, 0, 3)
# Cancel the error for the next test
X(q[i])
# Allocate 4 qubits: 3 qubits + 1 ancilla
q = qalloc(4)
testBitflipCode(q)
from qcor import qjit, qalloc
import qiskit
# Generate 3-qubit GHZ state with Qiskit
circ = qiskit.QuantumCircuit(3)
circ.h(0)
circ.cx(0, 1)
circ.cx(1, 2)
circ.measure_all()
# Creates a kernel parameterized on a qreg
qcor_kernel = qjit(circ)
# Allocate the qreg
q = qalloc(3)
# Convert to MLIR and print
mlir = qcor_kernel.mlir(q)
print(mlir)
# Convert to QIR and print
qir = qcor_kernel.qir(q, opt=3)
print(qir)
from pyquil import Program
from pyquil.gates import CNOT, H, MEASURE
p = Program()
p += H(0)
p += CNOT(0, 1)
ro = p.declare('ro', 'BIT', 2)
# for i in range(q.size()):
# Measure(q[i])
# # Allocate 3 qubits
# q = qalloc(3)
# # Run the bell experiment
# set_shots(1024)
# ghz(q)
# q.print()
# Or, import the IR from a Qiskit's QuantumCircuit
import qiskit
# Generate 3-qubit GHZ state with Qiskit
qiskit_circ = qiskit.QuantumCircuit(3)
qiskit_circ.h(0)
qiskit_circ.cx(0, 1)
qiskit_circ.cx(1, 2)
qiskit_circ.measure_all()
# Convert Qiskit circuit to QCOR IR
qcor_kernel = qjit(qiskit_circ)
# Allocate the qreg
q = qalloc(3)
# Examine the QCOR IR:
print('QCOR IR:')
qcor_kernel.print_kernel(q)
# to indicate it is meant for QCOR just in time compilation
# NOTE Programmers must type annotate their function arguments
@qjit
def measure_all_qubits(q: qreg):
for i in range(q.size()):
Measure(q[i])
# Define a Bell kernel
@qjit
def bell_test(q: qreg):
H(q[0])
CX(q[0], q[1])
# Call other kernels
measure_all_qubits(q)
# Allocate 2 qubits
q = qalloc(2)
# Inspect the IR
comp = bell_test.extract_composite(q)
print(comp)
# Run the bell experiment
bell_test(q)
# Print the results
q.print()
from qcor import qjit, qalloc
from qiskit.circuit.library import QFT
n_qubits = 3
# Create the IQFT, reverse bits for qcor
iqft = QFT(n_qubits, inverse=True).reverse_bits()
# ---- Use the following qcor boilerplate to generate QIR ----#
# Creates a kernel parameterized on a qreg
qcor_kernel = qjit(iqft)
# Allocate the qreg
q = qalloc(n_qubits)
# Convert to QIR and write to file
qir = qcor_kernel.qir(q,
add_entry_point=False,
qiskit_compat=True,
kernel_name='py_qiskit_iqft')
with open('iqft.ll', 'w') as f:
f.write(qir)