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Dynamical Symmetry and Its Applications In Electromagnetically Induced Transparency | | Xiong-Jun Liu
; Hui Jing
; Xin Liu
; Mo-Lin Ge
; | | Date: |
18 Oct 2004 | | Subject: | Quantum Physics; Mathematical Physics | quant-ph math-ph math.MP | | Abstract: | We study in detail the interesting dynamical symmetry and its applications in various atomic systems with electromagnetically induced transparency (EIT) in this paper. By discovering the symmetrical Lie group of various atomic systems, such as single-atomic-ensemble composed of complex $m$-level $(m>3)$ atoms, and $two$-atomic-ensemble and even multi-atomic-ensemble system composed of of $three$-level atoms etc., one can obtain the general definition of dark-state polaritons (DSPs), and then the dark-states of these different systems. The symmetrical properties of the multi-level system and multi-atomic-ensemble system are shown to be dependent on some characteristic parameters of the EIT system. Furthermore, a controllable scheme to generate quantum entanglement between lights or atoms via quantized DSPs theory is discussed and the robustness of this scheme is analyzed by confirming the validity of adiabatic passage conditions in this paper. | | Source: | arXiv, quant-ph/0410131 | | Services: | Forum | Review | PDF | Favorites | |
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