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arXiv 1208.3496quant-ph
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具有幂律能垒的三维量子稳定子码

3-d quantum stabilizer codes with a power law energy barrier

Kamil Michnicki

摘要:

我们引入了一个新的原语,称为焊接,结合两个稳定器代码产生一个新的稳定器代码。我们应用焊接来构造表面码,然后使用表面码来构造固体代码,一种具有粗糙和光滑边界的三维复曲面代码的变体。最后,我们焊接固体代码在一起,以产生一个$(O(L^3),1,O(L^{4/3}))$稳定剂代码的能量障碍的$O(L^{2/3})$,这解决了一个开放的问题,幂律能量障碍是否是可能的本地稳定剂代码哈密顿在三维空间。之前的最高能量势垒是$O(\log L)$。通过打破平移不变性,避免了先前的不通过结果。

英文摘要:

We introduce a new primitive, called welding, for combining two stabilizer codes to produce a new stabilizer code. We apply welding to construct surface codes and then use the surface codes to construct solid codes, a variant of a 3-d toric code with rough and smooth boundaries. Finally, we weld solid codes together to produce a $(O(L^3),1,O(L^{4/3}))$ stabilizer code with an energy barrier of $O(L^{2/3})$, which solves an open problem of whether a power law energy barrier is possible for local stabilizer code Hamiltonians in three-dimensions. The previous highest energy barrier is $O(\log L)$. Previous no-go results are avoided by breaking translation invariance.

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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