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Abstract: The blind quantum computing protocols BQC enable a classical client withlimited quantum technology to delegate a computation to the quantum serversin such a way that the privacy of the computation is preserved. Here we presenta new scheme for BQC that uses the concept of the measurement based quantumcomputing with the novel resource state of Affleck-Kennedy-Lieb-Tasaki AKLTchains leading to more robust computation. AKLT states are physically motivatedresource as they are gapped ground states of a physically natural Hamiltonianin condensed matter physics. Our BQC protocol can enjoy the advantages of AKLTresource states, such as the cooling preparation of the resource state, theenergy-gap protection of the quantum computation, and the simple and efficientpreparation of the resource state in linear optics with biphotons.

Autor: Tomoyuki Morimae, Vedran Dunjko, Elham Kashefi


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