Abstract
In this paper, we proposed two controlled remote state preparation of an arbitrary single-qubit state schemes one for deterministic controlled remote state preparation the other for probabilistic controlled-joint remote state preparation with 2/3 probability. Both of them used the Affleck–Kennedy–Lieb–Tasaki (AKLT) state which consisted of bulk spin-1’s and two spin-1\(/\)2’s at the ends. Up to now, no RSP protocols using AKLT gapped ground states as a shared quantum resource had been presented thus far and Fan et al. showed the other AKLT property was that if we performed a Bell measurement on bulk, then a maximally entangled state would be shared by two ends. We utilized these properties to develop our controlled protocols.
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This research is supported partially by the National Science Council, Taiwan, R.O.C., under the Contract No. NSC 100-2221-E-006-152-MY3.
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Liu, L.L., Hwang, T. Controlled remote state preparation protocols via AKLT states. Quantum Inf Process 13, 1639–1650 (2014). https://doi.org/10.1007/s11128-014-0757-3
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DOI: https://doi.org/10.1007/s11128-014-0757-3