Accelerating an adiabatic process by nonlinear sweeping

Xingxin Cao, Jun Zhuang, X. -J. Ning, Wenxian Zhang

Published 2012-01-10Version 1

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 slow in the narrow gap region, as contrast to the usual linear sweeping. We find the expected acceleration in the Laudau-Zener tunneling model and in the adiabatic quantum computing model for factorizing the number N=21.