Abstract
Quantum walks are a kind of basic quantum computation model. Quantum walks with memory(QWM) are types of modified quantum walks that record the walker’s latest path. In this paper we present QWM-P, a kind of QWM whose evolution depends on the parity of memory. QWM-P has an identity coin shift function which helps in analyzing and designing algorithms. Then we discuss some properties of QWM-P. We find that the parity of memory length affects the appearance of QWM-P.
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Acknowledgements
This work is supported by NSFC (Grant Nos. 61701229, 61571226, 61572053, 61702367, 61901218), Natural Science Foundation of Jiangsu Province, China (Grant No. BK20170802, BK20190407), China Postdoctoral Science Foundation funded Project (Grant Nos. 2018M630557, 2018T110499), Jiangsu Planned Projects for Postdoctoral Research Funds (Grant No. 1701139B), the Beijing Natural Science Foundation (Grant No. 4162005), The Research Project of Tianjin Municipal Commission of Education(Grant No. 2017KJ033), the Fundamental Research Funds for the Central Universities (Grant No. 2018RC55), the Beijing Talents Foundation (Grant No. 2017000020124G062).
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Li, D., Mc Gettrick, M., Yang, YG. et al. Quantum Walks with Memory Provided by Parity of Memory. Int J Theor Phys 59, 1934–1943 (2020). https://doi.org/10.1007/s10773-020-04466-5
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DOI: https://doi.org/10.1007/s10773-020-04466-5