Abstract
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.
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