摘要
We propose a simple scheme for the generation of a peculiar tripartite entangled state via thermal cavity. The peculiar tripartite entangled state shares features of the GHZ and 14/ state simultaneously. The photon-numberdependent parts in the effective Hamiltonian are canceled with the assistance of a strong classical field, thus the scheme is insensitive to both the thermal field and the cavity decay. The only thing one needs to do is to modulate the interaction time only once.
基金
The project supported by National Natural Science Foundation of China under Grant No.60678022
the Doctoral Fund of the Ministry of Education of China under Grant No.20060357008
the Key Program of the Education Department of Anhui Province under Grant Nos.2006KJ070A,KJ2007B082
the Youth Foundation of West Anhui University under Grant No.WXCQ0601
