English

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

Quantum Physics 2017-04-05 v1

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.

Keywords

Cite

@article{arxiv.1612.03613,
  title  = {Generation of a non-zero discord bipartite state with classical second-order interference},
  author = {Yujun Choi and Kang-Hee Hong and Hyang-Tag Lim and Jiwon Yune and Osung Kwon and Sang-Wook Han and Kyunghwan Oh and Yoon-Ho Kim and Yong-Su Kim and Sung Moon},
  journal= {arXiv preprint arXiv:1612.03613},
  year   = {2017}
}

Comments

8 pages, 5 figures

R2 v1 2026-06-22T17:20:21.921Z