Quantum computation and entangled-state generation through adiabatic evolution in two distant cavitiesJie Song, Yan Xia, He-Shan Song, Jin-Liang Guo and Jing Nie
School of Physics and Optoelectronic Technology, Dalian University of Technology - Dalian 116024, China
received 23 May 2007; accepted in final form 12 October 2007; published December 2007
published online 5 November 2007
A protocol is proposed to implement nongeometric phase gates and generate entangled states by the adiabatic evolution of dark states in two distant cavities. The influence of various decoherence processes such as spontaneous emission and photon loss on the fidelity and success probability is also discussed. And this protocol can be generalized to generate N-atom entangled states.
03.67.Hk - Quantum communication.
03.65.Ud - Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.).
© Europhysics Letters Association 2007