Fractional recurrence in discrete-time quantum walk

• Authors: C. Chandrashekar
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

quantum walk, recurrence; polya number

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2010
• Volume: 8
• Issue: 6
• Pages: 979-988

Dates

published

1 - 12 - 2010

online

5 - 9 - 2010

Contributors

author

C. Chandrashekar

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Identifiers

DOI

10.2478/s11534-010-0023-y