We report a quantum random number generator based on the photon-number–path entangled state that is prepared by means of two-photon quantum interference at a beam splitter. The randomness in our scheme is truly quantum mechanical in origin since it results from the projection measurement of the entangled two-photon state. The generated bit sequences satisfy the standard randomness test.
© 2009 Optical Society of America
Coherence and Statistical Optics
Original Manuscript: January 21, 2009
Manuscript Accepted: February 18, 2009
Published: March 19, 2009
Osung Kwon, Young-Wook Cho, and Yoon-Ho Kim, "Quantum random number generator using photon-number path entanglement," Appl. Opt. 48, 1774-1778 (2009)