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arXiv · 1612.03613

Generation of a non-zero discord bipartite state with classical second-order interference

Yujun Choi·Kang-Hee Hong·Hyang-Tag Lim·Jiwon Yune·Osung Kwon·Sang-Wook Han·Kyunghwan Oh·Yoon-Ho Kim·Yong-Su Kim·Sung Moon
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Abstract

We report investigation on quantum discord in classical second-order interference. In particular, we theoretically show that a bipartite state with D = 0.311 of discord can be generated via classical second-order interference. We also experimentally verify the theory by obtaining D = 0.197 +- 0.060 of non-zero discord state. Together with the fact that non-classicalities originated from physical constraints and information theoretic perspectives are not equivalent, this result provides an insight to understand the nature of quantum discord.

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Yujun Choi, Kang-Hee Hong, Hyang-Tag Lim, Jiwon Yune, Osung Kwon, Sang-Wook Han, Kyunghwan Oh, Yoon-Ho Kim, Yong-Su Kim, Sung Moon. 2016-12-12. Generation of a non-zero discord bipartite state with classical second-order interference. https://doi.org/10.1364/oe.25.002540

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