標題: | Experimental violation of Bell inequalities for multi-dimensional systems |
作者: | Lo, Hsin-Pin Li, Che-Ming Yabushita, Atsushi Chen, Yueh-Nan Luo, Chih-Wei Kobayashi, Takayoshi 電子物理學系 Department of Electrophysics |
公開日期: | 26-二月-2016 |
摘要: | Quantum correlations between spatially separated parts of a d-dimensional bipartite system (d >= 2) have no classical analog. Such correlations, also called entanglements, are not only conceptually important, but also have a profound impact on information science. In theory the violation of Bell inequalities based on local realistic theories for d-dimensional systems provides evidence of quantum nonlocality. Experimental verification is required to confirm whether a quantum system of extremely large dimension can possess this feature, however it has never been performed for large dimension. Here, we report that Bell inequalities are experimentally violated for bipartite quantum systems of dimensionality d=16 with the usual ensembles of polarization-entangled photon pairs. We also estimate that our entanglement source violates Bell inequalities for extremely high dimensionality of d>4000. The designed scenario offers a possible new method to investigate the entanglement of multipartite systems of large dimensionality and their application in quantum information processing. |
URI: | http://dx.doi.org/10.1038/srep22088 http://hdl.handle.net/11536/132575 |
ISSN: | 2045-2322 |
DOI: | 10.1038/srep22088 |
期刊: | SCIENTIFIC REPORTS |
Volume: | 6 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |