Qianheng Duan

Quantum random number generator (QRNG) relies on the intrinsic randomness of quantum mechanics to produce true random numbers which are important in many fields. QRNGs with semiconductor light source have attracted a lot of attention due to their operational simplicity and high generation rate. However, the temperature of light source may vary due to imperfect devices and other factors. There is still a lack of study on the effects of temperature variations on the security of practical QRNG. We fill this gap by presenting a numerical method for studying the effects of temperature increase on the super-luminescent emitting diode (SLED) based QRNG and propose some strategies toward robust QRNG against temperature increase.