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Variational Method Applied to Schrödinger-Like Equation

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Abstract

In this work we propose to adapt the variational method to analyze a specific equation derived from a statistical model for the DNA molecule. The referred equation is a Schrödinger-like equation with an additional position-dependent function multiplying its second order derivative term. The use of the adapted variational approach is shown to be a suitable technique for the calculation of the ground state for two similar potential problems. In the first problem the additional function and the potential have an exponential position-dependence while for the second the additional function has a quadratic position-dependence and the potential has a quadratic and inverse quadratic position-dependence.

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Acknowledgement

EDF would like to thank FAPESP (Proc. No. 2017/01757-9) for partial support.

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Correspondence to Regina M. Ricotta .

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Filho, E.D., Ricotta, R.M., Ribeiro, N.F. (2019). Variational Method Applied to Schrödinger-Like Equation. In: Kuru, Ş., Negro, J., Nieto, L. (eds) Integrability, Supersymmetry and Coherent States. CRM Series in Mathematical Physics. Springer, Cham. https://doi.org/10.1007/978-3-030-20087-9_12

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