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arXiv 1502.00617quant-ph
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用于量子误差表征的量子码

Quantum code for quantum error characterization

S. Omkar, R. Srikanth, Subhashish Banerjee

摘要:

量子纠错码是子空间$\mathcal{C}$,使得作用于$\mathcal{C}$中的任何状态的允许的错误可以被纠正。一种量子码,其状态恢复仅需要达到$\mathcal{C}$内的逻辑循环,可用于错误检测,但不用于量子纠错。这种具有稳定子结构的代码,我们称之为“模糊稳定子代码”(ASC),仍然可以用于量子动力学(CQD)的表征。ASC的使用可以帮助降低所使用的CQD探测状态的大小,但是以增加操作数量为代价。

英文摘要:

A quantum error correcting code is a subspace $\mathcal{C}$ such that allowed errors acting on any state in $\mathcal{C}$ can be corrected. A quantum code for which state recovery is only required up to a logical rotation within $\mathcal{C}$, can be used for detection of errors, but not for quantum error correction. Such a code with stabilizer structure, which we call an "ambiguous stabilizer code" (ASC), can nevertheless be useful for the characterization of quantum dynamics (CQD). The use of ASCs can help lower the size of CQD probe states used, but at the cost of increased number of operations.

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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