Abstract We propose a scheme for generating bipartite and multipartite entangled squeezed states via the Jaynes－Cummings model with large detuning. Bipartite entanglement of these entangled states is quantified by the concurrence. We also use the N-tangle to compute multipartite entanglement of these multipartite entangled squeezed states. Finally we discuss two limiting cases which arise from r→∞ and r→0, in which the multipartite entangled squeezed state reduces correspondingly into an N-qubit Greenberger－Horne－Zeilinger state and an N-qubit W state.
Received: 18 December 2001
Revised: 04 March 2002
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10075018), and the State Key Development Programme for Basic Research of China (Grant No 2001CB309309).
Cite this article:
Cai Xin-Hua (蔡新华), Kuang Le-Man (匡乐满) Preparation of entangled squeezed states and quantification of their entanglement 2002 Chinese Physics 11 876
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