非最大量子纠缠信道的量子态传送——在腔QED系统中利用非最大三粒子纠缠GHZ态传送未知原子态Teleportation of Quantum States with Nonmaximally Entangled Quantum Channel——Teleportation of an Unknown Atom State Via a Tripartite Nonmaximally Entangled GHZ State in Cavity QED
杜茜华;陈复;陈子翃;林中晞;林秀敏;
摘要(Abstract):
讨论在腔QED中如何利用非最大三粒子纠缠GHZ态实现未知单原子态、两原子纠缠态的概率隐形传送.在量子态传送过程中需要引入一个辅助粒子以解决使用非最大纠缠量子信道导致的态畸变问题.本方案在两原子与腔相互作用的整个过程中,由于经典场同时对两原子进行驱动,量子态的演化不依赖于腔场的态,因而不受腔泄漏和热腔场的影响.
关键词(KeyWords): 量子隐形传态;腔QED;GHZ态;非最大量子纠缠信道
基金项目(Foundation): 国家自然科学基金资助项目(10574022);; 福建省自然科学资金资助项目(2007J00022007J01972006J0230);; 福建师范大学本科生“课外科技计划”项目(BKL2007091)
作者(Authors): 杜茜华;陈复;陈子翃;林中晞;林秀敏;
参考文献(References):
- [1]Bennet C H,Brassard G,Crépeau C,et al.Teleportation an unknown quantum state via dual classical andEinstein-podolsky-rosen channels[J].Phys Rev Lett,1993,70(13):1895-1899.
- [2]Brassard G,Mann A.Measurement of the bell operator and quantum teleportation[J].Phys Rev A,1995,51(3):R1727-R1730.
- [3]Zheng S B,Guo G C.Teleportation of an unknown atomic state through the Raman atom-cavity-field interaction[J].Phys Lett A,1997,232:171-174.
- [4]Davidovich L,Zagury N,Brune M,et al.Teleportation of an atomic state between two cavities using no-localmicrowave fields[J].Phys Rev A,1994,50(2):895-898.
- [5]Lu H,Guo G C.Teleportation of two-particle entangled state via entanglement swapping[J].Phys Lett A,2000,276(6):209-212.
- [6]Ye L,Guo G C.Probabilitic teleportation of an unknown atomic state[J].Chin Phys,2002,11(10):966-998.
- [7]Vaidman L.Teleportation of quantum states[J].Phys Rev A,1994,49(2):1473-1476.
- [8]Riebe M.Deterministic quantum teleportation with atoms[J].Nature,2004,429:734-737.
- [9]Barrett M D,Chiaverini J,Scheatz T,et al.Deterministic quantum teleportation of atomic qubits[J].Nature,2004,429:737-739.
- [10]Li L W,Li C F,Guo G C.Probabilistic teleportation and entanglement matching[J].Phys Rev A,2000,61:034301-034303.
- [11]Shi B S,Jiang Y K,Guo G C.Probabilistic teleportation of two-particle entangled state[J].Phys Lett A,2001,268:161-164.
- [12]Lu H,Guo G C.Teleportation of a two-particle entangled state via entanglement swapping[J].Phys Lett A,2000,276:209-212.
- [13]Gu Y J,Zheng Y Z,Guo G C.Probabilistic teleportation of an arbitrary two-particle state[J].Chin Phys Lett,2001,18(12):1543-1545.
- [14]Yan F L,Tan H G,Yang L G.Teleportation of two-particle state of general formation[J].Commun TheorPhys(Beijing China),2002,37(6):649-654.
- [15]Dai H Y,Chen P X,Li C Z.Probabilistic teleportation of an arbitrary two-particle state by two partial three-particle entangled W states[J].Opt B:Quantum Semiclasst,2004,6:106-109.
- [16]Osnaghi S,Bertet P,Auffeves A,et al.Coherent control of an atomic collision in a cavity[J].Phys Rev Lett,2001,87:037902-037905.
- [17]Zheng S B.Scheme for approximate conditional teleportation of an unknown atomic state without the Be-l-statemeasurement[J].Phys Rev A,2004,69:064302-064304.
- [18]Ye L,Guo G C.Scheme for teleportation of an unknown atomic state without the Bell-state measure-ment[J].Phys Rev A,2004,70:054303-054305.
- [19]Zheng S B.Generation of entangled states for many multilevel atoms in a thermal cavity and ions in the Thermalmotion[J].Phys Rev A,2003,68:35801-35804.
- [20]Raimond J M,Brune M,Haroche S.Colloquium:Manipulating quantum entanglement with atoms and photonsin a cavity[J].Rev Mod Phys,2001,73:565-582.