摘要
Ws show that there exists the precise Einstein-Podolsky-Rosen entanglement for an electron in a uniform magnetic Held.SpeciBcally,the x-and y-coordinates of the electron as well as the corresponding canonical momenta px and Pv become sharply correlated,which is a novel fact unnoticed before.When a harmonic potential is added to the system,the original vacuum state of the system becomes a squeezed vacuum state,whose quantum nonlocality is then demonstrated.
作者
范洪义
陈增兵
FAN Hong-Yi;CHEN Zeng-Bing(Department of Applied Physics,Shanghai Jiao Tong University,Shanghai 200030;Department of Material Science and Engineering,University of Science and Technology of China,Hefei 230026)
基金
Supported by the National Natural Science Foundation of China and Foundation of Educational Ministry of China。
