Abstract:

we investigated the effects of temperature and electron-phonon coupling strength on vibrational frequency , effective confinement length , ground state energy and ground state binding energy of strong-couping polaron in a parabolic quantum wire by using linear combination operator and unitary transformation methods. We found that vibrational frequency , ground state energy and ground state binding energy of the strong-coupling polaron increase with the increase in temperature . the effective confinement length increases with the increase of temperature and electron-phonon coupling strength . But when the temperature reached a certain level, with increasing temperature, decreased electron-phonon coupling strength .

Key words: optoelectronics, Temperature effect, linear combination operator, parabolic quantum wire, polaron