arxiv: 1612.03613 · v1 · pith:WTHLRR5Enew · submitted 2016-12-12 · 🪐 quant-ph

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

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Yong-Su Kim Sung Moon

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classification 🪐 quant-ph

keywords discordclassicalinterferencesecond-orderstatebipartitenon-zeroquantum

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

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