The integral-differential and integral approach for the estimation of the classical Lennard-Jones and Biswas-Hamann potentials Online publication date: Tue, 21-Jul-2020
by Samuel A. Surulere; Micheal Y. Shatalov; Andrew C. Mkolesia; Julius O. Ehigie
International Journal of Mathematical Modelling and Numerical Optimisation (IJMMNO), Vol. 10, No. 3, 2020
Abstract: Many well-known semiempirical potential energy functions have been used to construct potential energy curves from the physical or chemical properties of atoms. In this study, we identify the Lennard-Jones and Biswas-Hamann potential parameters and use these to calculate and reconstruct potential energy curves using experimental datasets of gold atom. Two different approaches are studied in detail. The Lennard-Jones potential yielded complex conjugate eigenvalues for both approaches. Numerical estimates proved the considered approaches gives better approximations as constructed and reconstructed potential energy curves were almost graphically indistinguishable.
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