Thermal State Quantum Correlation in Lithium Atom

摘要：

In this paper we perform a comparative investigation on the quantum correlation and quantum entanglement between the electron and the nucleus in the lithium atom in the presence of magnetic field both for zero temperature case and finite temperature case. The quantum correlation and quantum entanglement are quantified by quantum discord and negativity respectively. It is found that compared with negativity, the quantum discord shows quite different behaviors at the same temperatures and magnetic fields. The quantum discord is more robust than quantum entanglement, so it is expected to be more useful in the processing of quantum information and quantum computation.

关键词： quantum discord quantum entanglement lithium atom

作者: Bo Wang SuPeng Kou

作者单位: Department of Physics Beijing Normal University Beijing, China Department of PhysicsBeijing Normal UniversityBeijing, China

会议类型: 国际会议

会议名称: 2012 International Conference on Optoelectronics and Microelectronics(2012光电子与微电子国际学术会议 2012 ICOM)

会议地点: 长春

会议语种:英文

页码: 392-396

在线出版日期: 2012-08-23（万方平台首次上网日期，不代表论文的发表时间）