Effect of temperature and electric field on life time and energy states of bound polaron in triangular quantum dot

• The ground and first excited state energy of bound polaron in RbCl triangular quantum dot are obtained by employing the linear combination operator and unitary transformation methods.
• Effects of temperature and electric field, the influence of polaron radius and polar angle on lifetime and energy levels are studied.

The ground and first excited state energy of bound polaron in RbCl triangular quantum dot are obtained by employing the linear combination operator and unitary transformation methods. Effects of temperature and electric field, the influence of polaron radius and polar angle on lifetime and energy levels are studied. Numerical results show the decrease of polaron lifetime with increase of temperature and the oscillatory behavior of the lifetime due to the form of triangular potential. These results also show the increase of polaron lifetime with the increase of polaron radius and confinement length. These suggested that to improve the quantum transition in nanostructure, temperature has to be increased, whereas to have a long lifetime of polaron in a considered state, electric field strength, polaron radius and the confinement length have to be well modulated.