Accelerating an adiabatic process by nonlinear sweeping |
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Authors: | Cao Xing-Xin Zhuang Jun Ning Xi-Jing and Zhang Wen-Xian |
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Affiliation: | [1]Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China [2]institute of Modem Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai 200433, China |
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Abstract: | We investigate the acceleration of an adiabatic process with the same survival probability of the ground state by sweeping a parameter nonlinearly, fast in the wide gap region and slowly in the narrow gap region, in contrast to the usual linear sweeping. We find the expected acceleration both in the Landau-Zener tunneling model and in the adiabatic quantum computing model for factorizing the number N = 21. |
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Keywords: | quantum calculation quantum adiabatic algorithm factorization nonlinear sweeping |
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