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International Journal of Theoretical Physics 54, 139–152 (2015)

ISSN: 0020-7748, SCI

Controlled Simultaneously State Preparation at Many Remote Locations with a New Cluster State Type

Cao Thi Bich

We succeed in the creation of a new cluster state type which has not been dealt with so far. After that we use it as quantum channel for quantum communication. Namely, in this paper one sender can simultaneously transmit two (three) different single-qubit states for two (three) different receivers under the control of a supervisor in only one protocol by using a five (seven)-qubit cluster state shared beforehand among the participants as quantum nonlocal resources. The merit of our work is that we can also generalize for sending N different single-qubit states to N receivers with also a controller by using a (2N + 1)-qubit cluster state. We follow the adaptive measurement strategy in order to achieve unit success probability.

DOI: 10.1007/s10773-014-2210-x