title: High-speed quantum random number generation by measuring phase noise of a single-mode laser.
abstract: 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.
authors.affiliation: Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario, Canada. bqi@physics.utoronto.ca
authors.forename: Bing
authors.initials: B
authors.lastname: Qi
authors.forename: Yue-Meng
authors.initials: YM
authors.lastname: Chi
authors.forename: Hoi-Kwong
authors.initials: HK
authors.lastname: Lo
authors.forename: Li
authors.initials: L
authors.lastname: Qian