鉴于一种新形式的W类纠缠态作为纠缠通道可以实现概率为100%的量子隐形传态和密集编码的特殊优势,提出了一个基于超导量子相干装置在单模谐振腔中制备该W类纠缠态的方案.在这个方案里,只需利用超导量子相干装置和腔场发生共振相互作用,一步便可制备W类纠缠态.在目前的腔QED技术条件下,该方案是可以实现的.
Because the property of a class of W state can be used as entanglement channel for realizing perfect teleportation and dense coding with the successful probability 100%,a simple scheme is presented for generating this W-class entangled state.It relies on the superconducting quantum interference devices (SQUIDs) simultaneously interacting with single-mode cavity field under resonant circumstances.The distinct feature lies in that the whole course of preparation only needs one step.The scheme can be implemented by the present cavity QED techniques.
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