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Quantum processing by remote quantum control

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arxiv 1606.06131 v2 pith:XT2HRO7P submitted 2016-06-20 quant-ph

Quantum processing by remote quantum control

classification quant-ph
keywords linearprotocolquantumcomputationscontroloperationsremoteserver
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Client-server models enable computations to be hosted remotely on quantum servers. We present a novel protocol for realizing this task, with practical advantages when using technology feasible in the near term. Client tasks are realized as linear combinations of operations implemented by the server, where the linear coefficients are hidden from the server. We report on an experimental demonstration of our protocol using linear optics, which realizes linear combination of two single-qubit operations by a remote single-qubit control. In addition, we explain when our protocol can remain efficient for larger computations, as well as some ways in which privacy can be maintained using our protocol.

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