The effect of electromagnetic field and Coulomb impurity on polaron in RbCl triangular quantum dot qubit

In the following study, the time evolution of the quantum mechanical state of a magnetopolaron using the Pekar type variational method on the electric-LO-phonon was considered. A strong coupling of polaron in triangular RbCl quantum dot with Coulomb impurity was duly derived. The Eigen energies and the Eigen functions of the ground state and the first excited state were obtained respectively. The obtained system in a quantum dot was treated as a two-level quantum system qubit and the numerical calculations were performed. The relations of polaron life time, the probability density, the Coulomb binding parameter and the polar angle were derived. (author)