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Accelerating an adiabatic process by nonlinear sweeping |
| Cao Xing-Xin (曹兴鑫)a, Zhuang Jun (庄军)a, Ning Xi-Jing (宁西京)b, Zhang Wen-Xian (张文献)a |
a Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China;
b Institute of Modern 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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Received: 07 December 2012
Revised: 15 April 2013
Accepted manuscript online:
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PACS:
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03.67.-a
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(Quantum information)
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75.10.Jm
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(Quantized spin models, including quantum spin frustration)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10904017), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20090071120013), and the Shanghai Pujiang Program, China (Grant No. 10PJ1401300). |
Corresponding Authors:
Zhang Wen-Xian
E-mail: wenxianzhang@fudan.edu.cn
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Cite this article:
Cao Xing-Xin (曹兴鑫), Zhuang Jun (庄军), Ning Xi-Jing (宁西京), Zhang Wen-Xian (张文献) Accelerating an adiabatic process by nonlinear sweeping 2013 Chin. Phys. B 22 090310
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