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, ,Vol.: 4, Issue.: 2 (March-April)

Original Research Article

Decoherence Induced by a Quenching Driven Field on the Motion of a Single Electron


L. C. Fai1,2, M. Tchoffo1*, J. T. Diffo3 and G. C. Fouokeng1.

1Mesoscopic and Multilayer Structures Laboratory, Department of Physics, Faculty of Science, University of Dschang, Dschang, Cameroon.
2Department of Physics, Higher Teachers’ Training College, University of Bamenda, Cameroon.
3Department of Physics, Higher Teachers’ Training College, University of Maroua, Cameroon.


We investigate the motion of an electron in a one dimensional crystal coupled to an EMF potential, driven by an external force which is continuously switched on and off. The Shannon entropy and the thermodynamic parameters of the system are evaluated using the density matrix and the statistical sum, through the Feynman path integral method. The coupling with the system and its environment (modelised here by the quenching field) inducing decoherence. That effect is reduced when the magnetic confinement frequency increases.

Keywords :

Quenching; Decoherence; Magnetic confinement frequency; thermodynamic parameters.

Full Article - PDF    Page 267-282

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