Effect of spin on ground-state energy of weak-coupled bound magnetopolaron in asymmetry quantum dot

The properties of bound magnetopolaron,which is weakly coupled to LO-phonon in an asymmetric quantum dot(QD) were studied by using Tokuda modified linear combination operator and unitary transformation methods.The expression of ground-state energy as functions of the transverse and longitudinal confinement lengths and magnetic field was derived.After a simple numerical calculation,it's found that the ground-state energy of bound magnetopolaron splits into two branches after taking the spin influence into account.The ground-state energy and spin-up(down) splitting energy decrease with increasing the transverse and longitudinal confinement lengths,and they are increasing functions of magnetic field.