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arXiv quant-ph/0204010quant-phcs.CC
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量子优化问题

Quantum Optimization Problems

Tomoyuki Yamakami

摘要:

Krentel [J. Comput.系统科学,36,pp.490- 509]提出了一个NP优化问题的框架,该问题在多项式时间计算的指数多个结果中搜索最优值。本文将他的框架扩展到使用多项式时间量子计算的量子优化问题,并引入了类似于经典“完全”优化问题的“通用”量子优化问题的概念。我们展示了一个典型的量子优化问题,是普遍的多项式时间量子优化问题的类。我们表明,在一定的相对化的世界,所有的量子优化问题不能接近量子多项式时间计算。我们还研究了量子优化问题的复杂性与众所周知的复杂性类。

英文摘要:

Krentel [J. Comput. System. Sci., 36, pp.490--509] presented a framework for an NP optimization problem that searches an optimal value among exponentially-many outcomes of polynomial-time computations. This paper expands his framework to a quantum optimization problem using polynomial-time quantum computations and introduces the notion of an ``universal'' quantum optimization problem similar to a classical ``complete'' optimization problem. We exhibit a canonical quantum optimization problem that is universal for the class of polynomial-time quantum optimization problems. We show in a certain relativized world that all quantum optimization problems cannot be approximated closely by quantum polynomial-time computations. We also study the complexity of quantum optimization problems in connection to well-known complexity classes.

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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