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Quantum random number generator using photon-number path entanglement

Osung Kwon, Young-Wook Cho, and Yoon-Ho Kim

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Abstract

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

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