Study and Design of a Control System for generating and detecting Qubits for the Quantum Exchange of Cryptographic Key

We realized a system for quantum information exchange for cryptographic applications. VHDL describes the hardware for lasers driving and data reception; C++ implements the software for system management. The design is integrated on two boards. A synchronization method guarantees the right timing of the system. The unpredictably of qubit transmission is handled by a suitable time-calibrated receiving windows system. Achieved results improve previous system version in performaces and reliability.