Quantum interpolation of polynomilas

Quantum Information & Computation(2011)

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摘要
Can a quantum computer efficiently interpolate polynomials? We consider black-boxalgorithms that seek to learn information about a polynomial f from input/output pairs(xi, f(xi)). We define a more general class of (d, S)-independent function properties,where, outside of a set S of exceptions, knowing d input values does not help one predictthe answer. There are essentially two strategies to computing such a function: queryd + 1 random input values, or search for one of the |S| exceptions. We show that, up toconstant factors, we cannot beat these two approaches.
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关键词
predictthe answer,quantum interpolation,output pair,quantum computer,random input value,interpolate polynomial,toconstant factor,general class,input value,independent function property,input output,computational complexity,quantum physics,lower bound
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