THE PURE DEPHASING FACTOR OF COULOMB BOUND POLARON IN AN ANISOTROPIC QUANTUM DOT

Abstract

On the condition of electron–LO-phonon strong coupling in an anisotropic qunntum dot (QD), the eigenenergies of the ground-state and the first excited state, the eigenfunctions of the ground-state and the first excited state are obtained by using a variational method of Pekar type. This system in QD may be employed as a quantum system-qubit. Numerical calculations are performed on the pure dephasing factor. The relations of the pure dephasing factor on the temperature, the Coulomb binding parameter, the electron–LO-phonon coupling strength and the effective confinement length are derived.