Modified Lee-Low-Pines Polaron in Spherical Quantum Dot in an Electric Field
A. J. Fotue *
Department of Physics, Mesoscopic and Multilayers Structures Laboratory, Faculty of Science, University of Dschang, P.O.Box: 479 Dschang, Cameroon
S. C. Kenfack
Department of Physics, Mesoscopic and Multilayers Structures Laboratory, Faculty of Science, University of Dschang, P.O.Box: 479 Dschang, Cameroon
H. Fotsin
Department of Physics, Laboratory of Electronics and Signal Processing, Faculty of Science, University of Dschang, P.O.Box 67, Dschang, Cameroon
M. Tiotsop
Department of Physics, Mesoscopic and Multilayers Structures Laboratory, Faculty of Science, University of Dschang, P.O.Box: 479 Dschang, Cameroon
L. C. Fai
Department of Physics, Mesoscopic and Multilayers Structures Laboratory, Faculty of Science, University of Dschang, P.O.Box: 479 Dschang, Cameroon
M. P. Tabue Djemmo
Department of Physics, Mesoscopic and Multilayers Structures Laboratory, Faculty of Science, University of Dschang, P.O.Box: 479 Dschang, Cameroon and Department of Physics Laboratory of Mechanics and Modeling of Physical Systems, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
*Author to whom correspondence should be addressed.
Abstract
In this paper, we investigated the influence of electric field on the ground state energy of polaron in spherical semiconductor quantum dot (QD) using modified Lee Low Pines (LLP) method. The numerical results show the increase of the ground state energy with the increase of the electric field and the confinement lengths. The modulation of the electric and the confinement lengths lead to the control of the decoherence of the system.
Keywords: Electric field, modified LLP, polaron energy, quantum dot