作者机构:
Department of Physics, Huazhong Normal University, Wuhan 430079;State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071
摘要:
Four three-mode correlated states are generated by two beam splitters. We show that, by means of parity measurement, those light fields exhibit the nonlocality represented by the violation of the Bell inequality. The conditions of the maximum violation are also studied.
作者机构:
[Peng, JS; Guo, H; Li, GX] Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
通讯机构:
[Guo, H] H;Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
关键词:
photoionization;autoionizing state;coherent population trapping
摘要:
We have investigated the photoionization properties of an atom with a ladder coupling scheme involving two autoionizing states coupled to each other. The effects of the coherent coupling between two autoionizing states and between the low-lying autoionizing state and the continuum on the ionization yield are discussed. The conditions leading to atomic coherent population trapping and the coherent population trapping states are given explicitly.
期刊:
Journal of Modern Optics,2002年49(1-2):237-243 ISSN:0950-0340
通讯作者:
Li, GS
作者机构:
[Li, GS] Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.;Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China.
通讯机构:
[Li, GS] C;Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
摘要:
We show that multi-mode entangled states in which all photons are equally entangled with each other violates Bell-type inequalities indicating quantum nonlocality. The degree of nonlocality of these entangled states increases with increasing number of modes.
作者机构:
[Huang, GM; Peng, JS; Wu, SP; Li, GX] Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
通讯机构:
[Li, GX] H;Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
摘要:
A cavity-modified master equation is derived for a coherently driven V-type three-level atom coupled to a single-mode cavity in the bad cavity limit. The influences of the cavity-induced quantum interference on the steady-state populations are analysed. We show that the population inversion can occur due to the effect of cavity-induced quantum interference.