Wave packet fractional revivals appear as manifestation of a multiple interference of various components of a wave packet during its long-time evolution in a bounded system. We study the phenomenon of fractional revivals by means of the time-dependent interference of information entropy density associated with a bound-state wave packet, which exhibits the formation of self-similar structures – quantum carpets woven by information entropy. The recurrences of self-similarity in the design of entropic carpet mimic the phenomena of quantum revivals and fractional revivals. We show that information theoretic measures are more sensitive to identify the wave-packet fractional revivals.

中文翻译：

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香农信息熵的动态干扰：识别波包分数复兴

波包分数恢复表现为波包在受限系统中长期演进过程中各个组件的多重干扰的表现。我们通过与状态波包相关的信息熵密度的时变干扰来研究分数复兴现象，这种现象表现出自相似结构的形成-由信息熵编织的量子地毯。熵地毯设计中自相似性的重复模仿了量子复兴和分数复兴的现象。我们表明，信息理论方法对识别波包分数的复兴更为敏感。