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arXiv quant-ph/0301087quant-ph
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2-局部哈密顿问题包含NP

The 2-local Hamiltonian problem encompasses NP

Pawel Wocjan, Thomas Beth

摘要:

证明了NP完全问题MAX CUT和INDEPENDENT SET可以表示为Kitaev定义的2-局部Hamilton问题。他引入了量子复杂性类BQNP作为NP的量子模拟,并证明了5-局部哈密顿问题是BQNP-完全的。目前还不知道s-局部哈密顿问题是否是BQNP-完全的s小于5。因此,确定哪些问题可以简化为s-局部哈密顿问题是有趣的。Kitaev证明了3-SAT可以表示为3-局部哈密顿问题。我们通过证明2-局部性足以包含NP来扩展他的结果。

英文摘要:

We show that the NP complete problems MAX CUT and INDEPENDENT SET can be formulated as the 2-local Hamiltonian problem as defined by Kitaev. He introduced the quantum complexity class BQNP as the quantum analog of NP, and showed that the 5-local Hamiltonian problem is BQNP-complete. It is not known whether the s-local Hamiltonian problem is BQNP-complete for s smaller than 5. Therefore it is interesting to determine what problems can be reduced to the s-local Hamiltonian problem. Kitaev showed that 3-SAT can be formulated as a 3-local Hamiltonian problem. We extend his result by showing that 2-locality is sufficient in order to encompass NP.

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