On the Probability of Finding Marked Connected Components Using Quantum Walks

Lobachevskii Journal of Mathematics - Tập 39 - Trang 1016-1023 - 2018
K. Khadiev1,2, N. Nahimovs1, R. A. M. Santos1
1Center for Quantum Computer Science, Faculty of Computing, University of Latvia, Riga, Latvia
2Institute of Computational Mathematics and Information Technologies, Kazan (Volga Region) Federal University, Kazan, Tatarstan, Russia

Tóm tắt

Finding a marked vertex in a graph can be a complicated task when using quantum walks. Recent results show that for two or more adjacent marked vertices search by quantum walk with Grover’s coin may have no speed-up over classical exhaustive search. In this paper, we analyze the probability of finding a marked vertex for a set of connected components of marked vertices. We prove two upper bounds on the probability of finding a marked vertex and sketch further research directions.

Tài liệu tham khảo

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