A scheme to generate two-quibit entangled states possessing any degree of entanglement and a definite symmetry was discussed. The controlled generation was achieved in two-quibit-cavity QED systems through on-resonance ion- or atom-cavity couplings, which were time dependent and assymmetric, yielding a trapping vacuum state condition. The decoherence in two-quibit-cavity system was attributed to the spontaneous emission with rate τ and to cavity decay with rate κ. This method exploits spatial and temporal variations in ion- or atom field coupling.
|Original language||English (US)|
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|State||Published - Aug 2004|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics