Randomicity of Physical Random Number Generator
物理真随机码发生器随机性分析

The Absolute security of quantum cryptography system was guaranteed by two aspects: no eavesdropping channel and no repetition true random codes. The randomicity of physical random number generator based on Guass noise was discussed. The relation of its correlation coefficient and entropy with the physical parameter were calculated and how to get the best performance was discussed. It is useful for developing the true random number generator used in the quantum cryptography systems.