Fast controlled preparation of two-atom maximally entangled state and N-atom W state in the direct coupled cavity systems via shortcuts to adiabatic passage
1 Department of Physics, Fuzhou
2 Department of Physics, Harbin Institute of Technology, Harbin 150001, P.R. China
Received in final form: 18 March 2016
Published online: 30 August 2016
We propose a scheme to fast controlled preparation of two-atom maximally entangled state and N-atom W state in the directly coupled cavities systems via shortcuts to adiabatic passage (STAP). Numerical simulation demonstrates that the scheme is faster than adiabatic passage and robust against the decoherence caused by atomic spontaneous emission and photon leakage. The result provides a theoretical basis for the manipulation of quantum states in the directly coupled cavities systems via STAP and contributes to the understanding of more complex systems.
Key words: Quantum Information
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2016