期刊
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
卷 58, 期 3, 页码 939-949出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-018-3986-x
关键词
Nonadiabatic quantum search algorithm; Counterdiabatic driving; Success rate
资金
- Natural Science Foundation of China (NSFC) [11504430]
In nonadiabatic quantum search algorithm, it is difficult to calculate the success rate analytically. We develop the nonadiabatic quantum search algorithm by adding a counterdiabatic driving term to the original time-dependent Hamiltonian. The Hamiltonian we structured is diagonal in eigen picture and the time-independent Schrodinger equation is solved analytically. Then, we get an accurate analytical expression of success rate in nonadiabatic quantum search algorithm. Utilizing this expression, a sufficient condition, which can ensure the success rate be one with arbitrary evolution time, was found. Moreover, we can choose the better parameters by calculating the precise success rate according to the expression.
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