Properties of Strong-coupling Magnetopolaron in an Asymmetry Quantum Dot

The properties of strong-coupling magnetopolaron in an asymmetric quantum dot are studied by using a linear combination operator and the unitary transformation method. The relation of the vibrational frequency and the ground state binding energy of strong-coupling magnetopolaron in an asymmetric quantum dot with the transverse and longitudinal effective confinement length of quantum dot,the cyclotron frequency of the magnetic field and the electron-phonon coupling strength are derived. Numerical calculations are performed and the results show that the vibrational frequency and ground state binding energy of strong-coupling magnetopolaron in an asymmetric quantum dot increase rapidly with decreasing the transverse and longitudinal effective confinement length of quantum dot. These can be attributed to the interesting quantum size effects. The vibrational frequency and ground state binding energy are an increasing function of the cyclotron frequency and the electron-phonon coupling strength.