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Nonadiabatic Quantum Search Algorithm with Analytical Success Rate

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 a...

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Published in:International journal of theoretical physics 2019-03, Vol.58 (3), p.939-949
Main Authors: Li, Feng-Guang, Bao, Wan-Su, Li, Tan, Huang, He-liang, Zhang, Shuo, Fu, Xiang-Qun
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description 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 Schrödinger 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.
doi_str_mv 10.1007/s10773-018-3986-x
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subjects Algorithms
Elementary Particles
Mathematical analysis
Mathematical and Computational Physics
Physics
Physics and Astronomy
Quantum computing
Quantum Field Theory
Quantum Physics
Schrodinger equation
Search algorithms
Success
Theoretical
Time dependence
title Nonadiabatic Quantum Search Algorithm with Analytical Success Rate
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