用Von Netman熵研究了压缩真空场与运动二能级原子相互作用的量子体系的量子纠缠特性,讨论了初始压缩真空场的压缩度以及运动原子的场模结构参数对该量子体系纠缠特性的影响.结果表明,原子的运动使系统纠缠度的演化具有严格的周期性;在初始压缩度较大(r＞3)时,除了一些消纠缠点外,系统将长久停留在最大纠缠态,场模结构参数的增大将导致消纠缠次数的增多.
参考文献
| [1] | Einstein A,et al.Can quantum-mechanical description of physical reality be considered complete?[J].Phy.Rev.,1935,47:777. |
| [2] | Schrodinger E.Die gegenw artige situation in der quantenme chanik[J].Naturwissenschaften,1935,23:807. |
| [3] | Charkes H B,David P D.Quantum information and computation[J].Nature,2000,404:247. |
| [4] | Huang Y X,Guo G C.Properties of the field entropy evolution in the Jaynes-Cummings model with initial squeezed vacuum[J].Acta Sinica Quantum Optica (量子光学学报),1996,297 (in Chinese). |
| [5] | Huang C J,et al.Quantum properties of light of squeezed vacuum field Raman interacting with two coupled atoms[J].Acta Physical Sinica (物理学报),2001,50(03):473-477 (in Chinese). |
| [6] | Huang C J,et al.Influences of Kerr medium on the quantum properties of field of the system of two-mode squeezed vacuum field interacting with four-level atum[J].Acta Physical Sinica (物理学报),2002,51(09):1978-1982 (in Chinese). |
| [7] | Wang C Z,Fang M F.Entanglement and decoherence in the interaction between two-mode squeezing vacuum state field and atom[J].Acta Physical Sinica (物理学报),2002,51(09):1989-1995 (in Chinese). |
| [8] | Huang Y X,et al.Entanglement and disentanglement in the nonlinear interaction betveen squeezing vacuum state field and atom[J].Acta Physical Sinica (物理学报),2004,53(01):75-81 (in Chinese). |
| [9] | Rao Z M,et al.Influence of entangled atoms on three-body entanglement measure in Tavis-Cummings model[J].Chinese Journal of Quantum Electronics (量子电子学报),2004,21(06):773-777 (in Chinese). |
| [10] | Schicher R R.Jaynes-Cummings model with atomic motion[J].Opt.Commum.,1989,70(2):97-102. |
| [11] | Joshi A,et al.Effect of atomic motion on Ryderg atoms undergoing two-transitions in a lossless cavity[J].Phys Rev.(A),1990,42(3):1752-1756. |
| [12] | Tian Y H,et al.The influence of atomic motion and field-mode structure on the atomic dynamical property[J].Acta Photonica Sinica (光子学报),2001,30(11):1297-1302 (in Chinese). |
| [13] | Liu A L,et al.Effects of atomic motion and field mode structure on quantum statistics property of the field[J].Chinese Journal of Quantum Electronics (量子电子学报),2001,18(02):140-144 (in Chinese). |
| [14] | Chen A X,et al.Quantum properties of two-mode light field interacting with a moving two-level atom[J].Acta Photonica Sinica (光子学报),2003,32(05):580-583 (in Chinese). |
| [15] | Simon J D.et al.Establishment of an entangled atom-field state in the Jaynes-Cummings modle[J].Phys.Rev.A,1991,44(9): |
| [16] | Nielsen M A,Chuang I L.Quantum Computation and Quantum Information[M].Cambridge University Press,2000. |
| [17] | Knoll L,Orlowski A.Distance between density operators[J].Phys.Rev.A,1995,51(02):1622-1630. |
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