Simulation of the BB84 quantum key distribution algorithm on FPGA

The paper presents a new method for simulating physical layer of the BB84 quantum key distribution protocol and its implementation on a field programmable gate array (FPGA). The p5hoton polarization state is set using two clock signals generated in the internal FPGA generator. The process of measuring the polarization state of a photon is modeled using a detector based on an «XOR» logic gate. The results of testing the implementation of this method on FPGA are in a good agreement with the theory.