najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2017-8-1-99-107najo-794Research ArticlePHYSICSФИЗИКАAccelerated dynamics in adiabatically-tunable asymmetric double-well potentialSetiawanI.

Jalan Ganesha 10, Bandung 40132

Jalan WR, Supratman Kandang Limun, Bengkulu 38371

isetiawan@unib.ac.idGunaraB. E.

Jalan Ganesha 10, Bandung 40132

KosasihJ. S.

Jalan Ganesha 10, Bandung 40132

NakamuraK.

Vuzgorodok, Tashkent 100174

Sumiyoshi-ku, Osaka 558-8585

Physics Department, Insititut Teknologi Bandung; Physics Education Department, University of BengkuluIndonesiaPhysics Department, Insititut Teknologi BandungIndonesiaFaculty of Physics, National University of Uzbekistan; Department of Applied Physics, Osaka City UniversityJapan2017130820258199107Copyright © Setiawan I., Gunara B.E., Kosasih J.S., Nakamura K., 20252025Setiawan I., Gunara B.E., Kosasih J.S., Nakamura K.Setiawan I., Gunara B.E., Kosasih J.S., Nakamura K.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/794

We study a scheme for the acceleration of adiabatic quantum dynamics. Masuda-Nakamura’s theory of acceleration uses a strategy of combining two opposite ideas: infinitely-large time-magnification factor (α) and infinitely-small growth rate (∈) for the adiabatic parameter. We apply the proposed method to a system with a parameter-dependent asymmetric double-well potential which has no scale invariance, and obtain the elctromagnetic field required to accelerate the system. The ground state wave function, initially localized in one well, quickly moves to another well. We investigate two kinds of ground-state wave functions: with and without space-dependent phase ŋ. For the system with non-zero ŋ, we show the fast-forward of the adiabatic change for current density distribution more clearly characterizes the well-to-well transport and is deformed as the finite renormalized time-multiplication factor (v=∈α) is varied.

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The authors declare that there are no conflicts of interest present.