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quant-ph2005
Security improvement of using modified coherent state for quantum cryptography
Y. J. Lu, Luobei Zhu, Z. Y. Ou
Weak coherent states as a photon source for quantum cryptography have limit in secure data rate and transmission distance because of the presence of multi-photon events and loss in…
quant-ph2003
Mode-Locked Two-Photon States
Y. J. Lu, R. L. Campbell, Z. Y. Ou
The concept of mode locking in laser is applied to a two-photon state with frequency entanglement. Cavity enhanced parametric down-conversion is found to produce exactly such a sta…