Fractional recurrence in discrete-time quantum walk
arXiv:0810.5592 · doi:10.2478/s11534-010-0023-y
Abstract
Quantum recurrence theorem holds for quantum systems with discrete energy eigenvalues and fails to hold in general for systems with continuous energy. We show that during quantum walk process dominated by interference of amplitude corresponding to different paths fail to satisfy the complete quantum recurrence theorem. Due to the revival of the fractional wave packet, a fractional recurrence characterized using quantum Pólya number can be seen.
10 pages, 11 figure : Accepted to appear in Central European Journal of Physics
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