Fractional recurrence in discrete-time quantum walk

Details Fractional recurrence in discrete-time quantum walk Fractional recurrence in discrete-time quantum walk

2008-10-30

arxiv.org/abs/0810.5592v4

Cent. Eur. J. Phys. 8(6), 979-988 (2010)

Physics

Quantum Physics

10 pages, 11 figure : Accepted to appear in Central European Journal of Physics

Scientific paper

10.2478/s11534-010-0023-y

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 P\'olya number can be seen.

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