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arXiv 0905.3373quant-ph
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通过仅两个量子比特的局部控制的可扩展量子计算

Scalable quantum computation via local control of only two qubits

Daniel Burgarth, Koji Maruyama, Michael Murphy, Simone Montangero, Tommaso Calarco, Franco Nori, Martin B. Plenio

摘要:

我们应用量子控制技术来控制一个大的自旋链,只作用于两个量子比特在其一端,从而实现通用的量子计算的组合量子门上的后者和交换操作链。结果表明,控制序列可以有效地计算和实施。我们讨论了这些想法的物理系统,如超导量子比特,其中完全控制长链是具有挑战性的应用。

英文摘要:

We apply quantum control techniques to control a large spin chain by only acting on two qubits at one of its ends, thereby implementing universal quantum computation by a combination of quantum gates on the latter and swap operations across the chain. It is shown that the control sequences can be computed and implemented efficiently. We discuss the application of these ideas to physical systems such as superconducting qubits in which full control of long chains is challenging.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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