J4 ›› 2010, Vol. 27 ›› Issue (3): 314-318.

• Quantum Optics • Previous Articles     Next Articles

One step for generation of W-class states via superconducting quantum interference devices

DING Zhi-Yong, HE Juan, WU Tao   

  1. School of Physics and Electronic Science, Fuyang Normal College, Fuyang 236029, China
  • Received:2009-10-26 Revised:2009-12-28 Published:2010-05-28 Online:2010-05-11

Abstract:

A scheme for generation a class of W entangled state is presented. This paper relies on the superconducting quantum interference devices (SQUIDs) simultaneously interact with single-mode cavity field under resonant circumstances. The distinct feature of this paper lies in that the whole course of preparation only for one step. The scheme can be implemented by the present cavity QED techniques.

Key words: quantum information∣W-class state∣SQUIDs∣resonant