Superoscillations are oscillations of a wavefield that are locally higher than the bandlimit of the field. Superoscillations have to date been studied primarily in coherent wavefields; here we look at superoscillations that appear in the phase of the correlation function in partially coherent fields. It is shown that a decrease in spatial coherence can in some cases strengthen the superoscillatory behavior, and in others decrease it. Superoscillations are studied in a number of model partially coherent fields, and the influence of coherence on each model is considered.

中文翻译：

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部分相干场中的超振荡行为

超振荡是局部高于场带限的波场振荡。迄今为止，人们主要在相干波场中研究了超振荡。在这里，我们看一下部分相干场中相关函数相位中出现的超振荡。结果表明，空间相干性的降低在某些情况下会加强超振荡行为，而在其他情况下会降低超振荡行为。在多个模型部分相干场中研究了超振荡，并考虑了相干性对每个模型的影响。