def running(self): """ Is the network up and running? """ if self._running: return True for node in self.nodes: try: cqc = CQCConnection(node, retry_connection=False, network_name=self.name) except ConnectionRefusedError: self._running = False break except Exception as err: logging.exception( "Got unexpected exception when trying to connect: {}". format(err)) raise err else: cqc.close() else: self._running = True return self._running
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 running(self): for node in self.nodes: try: cqc = CQCConnection(node, retry_connection=False, cqcFile=self._cqc_file, appFile=self._app_file) except ConnectionRefusedError: self._running = False break else: cqc.close() else: self._running = True return self._running
def running(self): """ Is the network up and running? """ for node in self.nodes: try: cqc = CQCConnection(node, retry_connection=False, network_name=self.name) except ConnectionRefusedError: self._running = False break else: cqc.close() else: self._running = True return self._running
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()
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]) # Clear file with open("times{}_{}_{}.txt".format(min_tel, max_tel, number), "w") as f: pass # Initialize the connection Alice = CQCConnection("Alice") times = [] for n in range(min_tel, max_tel + 1): print("========") print(n) print("========") for _ in range(number): # start timer t1 = timer() # Create a qubit to teleport q = qubit(Alice) # Prepare the qubit to teleport in |+> q.H() # Start teleporting back and fourth for _ in range(n): # Make an EPR pair with next node qEPR = Alice.createEPR("Bob") # 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( Alice.name, a, b) print("|" + "-" * (len(to_print) + 2) + "|") print("| " + to_print + " |") print("|" + "-" * (len(to_print) + 2) + "|") # Send corrections to other node Alice.sendClassical("Bob", [a, b]) Alice.closeClassicalChannel("Bob") # Make an EPR pair with other node q = Alice.createEPR("Bob") # Receive info about corrections data = Alice.recvClassical(timout=3600) Alice.closeClassicalServer() message = list(data) a = message[0] b = message[1] # Apply corrections if b == 1: q.X() if a == 1: q.Z() # 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( Alice.name, m) print("|" + "-" * (len(to_print) + 2) + "|") print("| " + to_print + " |") print("|" + "-" * (len(to_print) + 2) + "|") to_print = "App {}: Time elapsed: t={}".format(Alice.name, t2 - t1) print("|" + "-" * (len(to_print) + 2) + "|") print("| " + to_print + " |") print("|" + "-" * (len(to_print) + 2) + "|") times.append((n, t2 - t1)) with open("times{}_{}_{}.txt".format(min_tel, max_tel, number), "a") as f: for (n, t) in times: f.write("{}, {}\n".format(n, t)) # Stop the connection Alice.close()