no code implementations • 9 Apr 2013 • Yan-Lin Tang, Hua-Lei Yin, Xiongfeng Ma, Chi-Hang Fred Fung, Yang Liu, Hai-Lin Yong, Teng-Yun Chen, Cheng-Zhi Peng, Zeng-Bing Chen, Jian-Wei Pan
Specifically, by implementing a linear-optics unambiguous-state-discrimination measurement, we show that the security of a system without phase randomization --- which is a step assumed in conventional security analyses but sometimes neglected in practice --- can be compromised.
Quantum Physics
no code implementations • 13 May 2011 • David Pitkänen, Xiongfeng Ma, Ricardo Wickert, Peter van Loock, Norbert Lütkenhaus
First we show that one can obtain asymptotically perfect heralding and unit success probability with growing resources.
Quantum Physics
