Teleportation of Three-Particle W State
- 78 Downloads
We present two schemes for teleporting a three-particle W state by using four-particle state. We consider that the quantum channel is a maximally entangled state (four-particle cluster state) or a non-maximally entangled state. In our schemes, it is necessary to introduce additional particle and construct unitary transformation for realize perfect or probabilistic teleportation of the three-particle W state. In order to transmit target state successfully, Alice firstly performs two controlled-NOT on the initial state. The success probabilities of our two schemes are 1 and 4α 2, respectively. Compared with other schemes proposed before, our scheme has higher efficiency.
KeywordsQuantum teleportation Three-particle W state Four-particle state Bell measurement Unitary operation
The research is supported by National Natural Science Foundation of China, under Grant Nos. 61672014 and 61502200, and Natural Science Foundation of Guangdong Province, China, under Grant Nos. 2016A030313090 and 2014A030310245, and Science and Technology Project of Guangzhou, under Grant No. 201707010253, and Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase), and the Fundamental Research Funds for the Central Universities.
- 10.Argrawal, P., Pati, A.: Perfect teleportation and superdense coding with W states. Phys. Rev. A 74, 154–154 (2006)Google Scholar
- 13.Sreraman, M., Prasanta, K.: Perfect teleportation, quantum state sharing and superdense coding through a genuinely entangled five-qubit state. Phys. Rev. A 77, 156–156 (2007)Google Scholar