utility.py 文件源码

def cx(self, circuit, control_qubit, target_qubit, control, target):
        if target in self.__coupling_map[control]:
            logger.log(logging.VERBOSE, 'cx() - cnot: (%s, %s)', str(control), str(target))
            circuit.cx(control_qubit, target_qubit)
        elif control in self.__coupling_map[target]:
            logger.log(logging.VERBOSE, 'cx() - inverse-cnot: (%s, %s)', str(control), str(target))
            circuit.h(control_qubit)
            circuit.h(target_qubit)
            circuit.cx(target_qubit, control_qubit)
            circuit.h(control_qubit)
            circuit.h(target_qubit)
        else:
            logger.critical('cx() - Cannot connect qubit %s to qubit %s', str(control), str(target))
            exit(3)

    # place cnot gates based on the path created in create_path method