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arXiv 0802.1874quant-ph
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任意阶微扰小工具

Perturbative Gadgets at Arbitrary Orders

Stephen P. Jordan, Edward Farhi

摘要:

绝热量子算法通常最容易使用多体相互作用来制定。然而,实验上可用的相互作用通常是两体的。2004年,肯普、基塔耶夫和雷格夫引入了微扰小工具,通过微扰小工具,可以使用仅由两体相互作用组成的哈密顿量来获得任意的三体有效相互作用。这些三体有效相互作用产生于微扰论的第三级。自从它们被引入以来,微扰小工具已经成为量子计算理论中的标准工具。在这里,我们构造广义的小工具,使之可以直接获得任意的k体有效相互作用从两体哈密顿。这些有效的相互作用产生于微扰论中的第k阶。

英文摘要:

Adiabatic quantum algorithms are often most easily formulated using many-body interactions. However, experimentally available interactions are generally two-body. In 2004, Kempe, Kitaev, and Regev introduced perturbative gadgets, by which arbitrary three-body effective interactions can be obtained using Hamiltonians consisting only of two-body interactions. These three-body effective interactions arise from the third order in perturbation theory. Since their introduction, perturbative gadgets have become a standard tool in the theory of quantum computation. Here we construct generalized gadgets so that one can directly obtain arbitrary k-body effective interactions from two-body Hamiltonians. These effective interactions arise from the kth order in perturbation theory.

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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