Please wait a minute...
Chinese Physics, 2006, Vol. 15(10): 2315-2319    DOI: 10.1088/1009-1963/15/10/020
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Generation of four-atom cluster states in thermal cavity and implementing remote controlled not gate

Yang Rong-Can(杨榕灿), Li Hong-Cai(李洪才), Chen Mei-Xiang(陈美香), and Lin Xiu(林秀)
School of Physics and OptoElectronics Technology, Fujian Normal University, Fuzhou 350007, China
Abstract  We propose an experimentally feasible scheme for preparing a four-atom cluster state in a thermal cavity. In the scheme, the cavity field is only virtually excited and the photon-number-dependent part in the effective Hamiltonian is cancelled so that the system is insensitive to the cavity decay and the thermal field. At the same time, the scheme can be generalized to prepare n-atom cluster states with the success probability 100%. In addition, using the four-atom cluster state, we also propose a simpler scheme for implementing a remote--controlled not gate (CNOT) without the Bell states measurement.
Keywords:  atomic cluster states      two-level atom      thermal cavity      remote CNOT gate  
Received:  04 October 2005      Revised:  18 January 2006      Accepted manuscript online: 
PACS:  42.50.Ar  
  03.67.Lx (Quantum computation architectures and implementations)  
  36.40.-c (Atomic and molecular clusters)  
  42.50.Dv (Quantum state engineering and measurements)  
Fund: Project supported by the National Natural Science Foundation (Grant No 10574022), and the Funds of the Natural Science of Fujian Province, China (Grant No Z0512006).

Cite this article: 

Yang Rong-Can(杨榕灿), Li Hong-Cai(李洪才), Chen Mei-Xiang(陈美香), and Lin Xiu(林秀) Generation of four-atom cluster states in thermal cavity and implementing remote controlled not gate 2006 Chinese Physics 15 2315

[1] Teleportation of arbitrary unknown two-atom statewith cluster state via thermal cavity
Zhang Wen(章文), Liu Yi-Min(刘益民), Liu Jun(刘俊), and Zhang Zhan-Jun(张战军). Chin. Phys. B, 2008, 17(9): 3203-3208.
[2] Efficient scheme for teleportation of an unknown N-atom state via a two-atom entangled state without the Bell-state measurement in cavity QED
Wang Xin-Wen (汪新文), Liu Xiang (刘翔), Fang Mao-Fa (方卯发). Chin. Phys. B, 2006, 15(4): 676-680.
[3] Teleportation of atomic entangled states with a thermal cavity
Zheng Xiao-Juan(郑小娟), Fang Mao-Fa(方卯发), Cai Jian-Wu(蔡建武), and Liao Xiang-Ping(廖湘萍). Chin. Phys. B, 2006, 15(12): 2840-2846.
No Suggested Reading articles found!