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arXiv 0903.4368math.OCquant-ph
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非交换变量多项式最优化问题的收敛松弛

Convergent relaxations of polynomial optimization problems with non-commuting variables

Stefano Pironio, Miguel Navascues, Antonio Acin

摘要:

本文研究了非交换变量中带多项式不等式约束的最优化问题。这些非对易变量被看作是维数不固定的希尔伯特空间上的有界算子,相应的多项式不等式被看作是半定正性约束.这些问题在量子理论和量子信息科学中自然出现。为了解决这些问题,我们引入了一个层次的半定规划松弛,产生一个单调序列的下界收敛到最优解。我们还介绍了一个标准,以检测是否达到全局最优值在一个给定的松弛步骤,并显示如何提取一个全局优化相应的半定规划问题的解决方案。

英文摘要:

We consider optimization problems with polynomial inequality constraints in non-commuting variables. These non-commuting variables are viewed as bounded operators on a Hilbert space whose dimension is not fixed and the associated polynomial inequalities as semidefinite positivity constraints. Such problems arise naturally in quantum theory and quantum information science. To solve them, we introduce a hierarchy of semidefinite programming relaxations which generates a monotone sequence of lower bounds that converges to the optimal solution. We also introduce a criterion to detect whether the global optimum is reached at a given relaxation step and show how to extract a global optimizer from the solution of the corresponding semidefinite programming problem.

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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