LI Wei-ping, XIAO Jing-lin. Influence of Phonon Dispersion on the Properties of Magnetopolaron in a Quantum Dot:Squeezed-state Variational Approach[J]. Chinese Journal of Luminescence, 2006,27(5): 651-655
LI Wei-ping, XIAO Jing-lin. Influence of Phonon Dispersion on the Properties of Magnetopolaron in a Quantum Dot:Squeezed-state Variational Approach[J]. Chinese Journal of Luminescence, 2006,27(5): 651-655DOI:
By applying a variational approach based on two successive canonical transformations and using a displaced-oscillator type unitary transformation to deal with bilinear terms
the influence of the dispersion of phonon on properties of magnetopolaron in a parabolic quantum dot (QD) is studied.The ground state energy and the average number of virtual phonons around the electron of weak-coupling magnetopolaron are calculated considering the in-fluence of the dispersion of phonon.Their dependence on the confinement length
the cyclotron frequency
the electron-LO-phonon coupling constant and the coefficient of phonon dispersion is depicted in the electron-LO-phonon weak-coupling case.