def main(): input_data = sys.argv[1:] # Set node numbers min_tel = int(input_data[0]) max_tel = int(input_data[1]) number = int(input_data[2]) # Initialize the connection Bob = CQCConnection("Bob") for n in range(min_tel, max_tel + 1): for _ in range(number): # Start teleporting back and fourth for _ in range(n): # Make an EPR pair with other node q = Bob.recvEPR() # Receive info about corrections data = Bob.recvClassical(timout=3600) Bob.closeClassicalServer() message = list(data) a = message[0] b = message[1] # Apply corrections if b == 1: q.X() if a == 1: q.Z() # Make an EPR pair with next node qEPR = Bob.recvEPR() # Apply the local teleportation operations q.cnot(qEPR) q.H() # Measure the qubits a = q.measure() b = qEPR.measure() to_print = "App {}: Measurement outcomes are: a={}, b={}".format( Bob.name, a, b) print("|" + "-" * (len(to_print) + 2) + "|") print("| " + to_print + " |") print("|" + "-" * (len(to_print) + 2) + "|") # Send corrections to other node Bob.sendClassical("Alice", [a, b]) Bob.closeClassicalChannel("Alice") # Stop the connection Bob.close()
def apply_on_target(self, cqc: CQCConnection, control_cqc_name: str, target: qubit): # Receive qubit q = cqc.recvEPR() remote_result = binStrToInt(cqc.recvClassical()) print("Bob received message: ", remote_result) if remote_result == 1: q.X() q.cnot(target) q.H() local_result = q.measure(inplace=True) q.reset() print("Bob sent message: ", local_result) cqc.sendClassical(control_cqc_name, msg=local_result)
def main(): input_data = sys.argv[1:] # Set node numbers node_nr = int(input_data[0]) tot_nr = int(input_data[1]) next_node_nr = (node_nr + 1) % tot_nr # Initialize the connection node = CQCConnection("n" + str(node_nr)) # Create EPR pairs with previous and next node if node_nr == 0: # start timer t1 = timer() qNext = node.createEPR("n" + str(next_node_nr)) qPrev = node.recvEPR() else: qPrev = node.recvEPR() qNext = node.createEPR("n" + str(next_node_nr)) if node_nr == 0: # this is the first node so create qubit # Create a qubit to teleport q = qubit(node) # Prepare the qubit to teleport in |+> q.H() # ------ # Qubit is created, send it to next node # ------ else: # we are node in chain so receive classical corrections # Receive info about corrections data = node.recvClassical() message = list(data) a = message[0] b = message[1] # Apply corrections if b == 1: qPrev.X() if a == 1: qPrev.Z() # ------ # Qubit is receive, send it to next node # ------ # Apply the local teleportation operations qPrev.cnot(qNext) qPrev.H() # Measure the qubits a = qPrev.measure() b = qNext.measure() to_print = "App {}: Measurement outcomes are: a={}, b={}".format( node.name, a, b) print("|" + "-" * (len(to_print) + 2) + "|") print("| " + to_print + " |") print("|" + "-" * (len(to_print) + 2) + "|") # Send corrections to next node node.sendClassical("n" + str(next_node_nr), [a, b]) if node_nr == 0: # this is first node, so receive again after qubit traversed chain # Receive info about corrections data = node.recvClassical() message = list(data) a = message[0] b = message[1] # Apply corrections if b == 1: qPrev.X() if a == 1: qPrev.Z() # ------ # Qubit is receive, so measure it # ------ # measure the qubit, print the outcome and record the time it took m = q.measure() t2 = timer() to_print = "App {}: Measurement outcome is: m={}".format(node.name, m) print("|" + "-" * (len(to_print) + 2) + "|") print("| " + to_print + " |") print("|" + "-" * (len(to_print) + 2) + "|") to_print = "App {}: Time elapsed: t={}".format(node.name, t2 - t1) print("|" + "-" * (len(to_print) + 2) + "|") print("| " + to_print + " |") print("|" + "-" * (len(to_print) + 2) + "|") with open("times_v2.txt", "a") as f: f.write("{}, {}\n".format(tot_nr, t2 - t1)) # Stop the connection node.close()