High-speed quantum random number generation by measuring phase noise of a single-mode laser.
We present a high-speed random number generation scheme based on measuring the quantum phase noise of a single-mode laser operating at a low intensity level near the lasing threshold. A delayed self-heterodyning system has been developed to measure the random phase fluctuation. By actively stabilizing the phase of the interferometer, a random number generation rate of 500 Mbit/s has been demonstrated and the generated random numbers have passed all the DIEHARD tests.
Qi
Bing
B
Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario, Canada. bqi@physics.utoronto.ca
Chi
Yue-Meng
YM
Lo
Hoi-Kwong
HK
Qian
Li
L