arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0901.1435quant-ph
收藏

图状态的稳定维数

The stabilizer dimension of graph states

D. H. Zhang, H. Fan, D. L. Zhou

摘要:

在局域幺正变换下,多方纯态的纠缠性质是不变的。一个多方纯态的稳定子维数表征了这个状态存在多少种这样的局部么正变换。我们发现一个$n$ -量子比特($n\ge 2$)图态的稳定子维数与它的图中的三种特定构型相关联。我们进一步证明了$n$ -量子比特($n\ge 3$)图态的稳定子维数等于该态中不可约的两量子比特关联度。

英文摘要:

The entanglement properties of a multiparty pure state are invariant under local unitary transformations. The stabilizer dimension of a multiparty pure state characterizes how many types of such local unitary transformations existing for the state. We find that the stabilizer dimension of an $n$-qubit ($n\ge 2$) graph state is associated with three specific configurations in its graph. We further show that the stabilizer dimension of an $n$-qubit ($n\ge 3$) graph state is equal to the degree of irreducible two-qubit correlations in the state.

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。

↑