In this paper, a scheme is proposed for the preparation of the tripartite W state or W-like state of nonidentical particles. In our scheme, our required resources include two atoms and one cavity field, which makes our system become simple. Because each party included by W state has its own two possible states, and is not identical each other, one can easily distinguish them. Furthermore, we teleportate an unknown state of cavity field by using this W state as quantum channels. Our scheme of preparation employing a single high-Q superconducting cavity turns out to be attractive to realize based on present or future cavity QED techniques.
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Partially supported by Natural Science Foundation of Jiangxi, China, under Grant No. 0612006 and by the Scientific Research Foundation of Jiangxi Provincial Department of Education, China, under Grant No. [2007]191.
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Chen, A., Deng, L. Scheme for Generation of W and W-like States of Nonidentical Particles and their Application in Teleportation. Quantum Inf Process 6, 221–228 (2007). https://doi.org/10.1007/s11128-007-0054-5
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DOI: https://doi.org/10.1007/s11128-007-0054-5