数学物理学报(英文版) ›› 2010, Vol. 30 ›› Issue (5): 1808-1818.doi: 10.1016/S0252-9602(10)60174-9

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QUANTUM COMPLEXITY OF THE APPROXIMATION FOR THE CLASSES Β(Wpr([0, 1]d)) AND Β(Hpr([0, 1]d))

叶培新, 胡晓菲   

  1. School of Mathematical Sciences and LPMC, Nankai University, Tianjin 300071, China; College of Mathematical, Syracuse University, |NY 13210, USA
  • 收稿日期:2006-03-03 修回日期:2008-10-10 出版日期:2010-09-20 发布日期:2010-09-20
  • 基金资助:

    Supported by the Natural Science Foundation of China (10501026, 60675010,10971251).

QUANTUM COMPLEXITY OF THE APPROXIMATION FOR THE CLASSES Β(Wpr([0, 1]d)) AND Β(Hpr([0, 1]d))

 YE Pei-Xin, HU Xiao-Fei   

  1. School of Mathematical Sciences and LPMC, Nankai University, Tianjin 300071, China; College of Mathematical, Syracuse University, |NY 13210, USA
  • Received:2006-03-03 Revised:2008-10-10 Online:2010-09-20 Published:2010-09-20
  • Supported by:

    Supported by the Natural Science Foundation of China (10501026, 60675010,10971251).

摘要:

We study the approximation of functions from anisotropic Sobolev classes B(Wpr}([0, 1]d)) and H\"{o}lder-Nikolskii classes B(Hpr}([0, 1]d)) in the Lq([0, 1]d) norm with q ≤ p in the quantum  model of computation. We determine the quantum query complexity of this problem up to logarithmic factors. It shows that the quantum algorithms are  significantly better  than the classical deterministic or randomized algorithms.

关键词: quantum approximation, anisotropic classes, minimal query error

Abstract:

We study the approximation of functions from anisotropic Sobolev classes B(Wpr}([0, 1]d)) and H\"{o}lder-Nikolskii classes B(Hpr}([0, 1]d)) in the Lq([0, 1]d) norm with q ≤ p in the quantum  model of computation. We determine the quantum query complexity of this problem up to logarithmic factors. It shows that the quantum algorithms are  significantly better  than the classical deterministic or randomized algorithms.

Key words: quantum approximation, anisotropic classes, minimal query error

中图分类号: 

  • 41A55