Abstract
Significant computational resources are necessary to calculate bound and resonance states of weakly bound systems with high accuracy. The discrete-variable representation method allows to reduce the computational complexity of determining the matrix elements of operators in the frame of variational methods. In this work, the binding energies of the Li-He\({}_2\) and He\({}_3\) systems are calculated and compared with other results.
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Acknowledgements
This work is supported by RFBR grant No. 18-02-00492. The calculations were performed on resources of the Computational Center of St. Petersburg State University.
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Timoshenko, V., Yarevsky, E. (2020). Study of Helium and Lithium Atomic Systems with the Discrete Variable Representations. In: Orr, N., Ploszajczak, M., Marqués, F., Carbonell, J. (eds) Recent Progress in Few-Body Physics. FB22 2018. Springer Proceedings in Physics, vol 238. Springer, Cham. https://doi.org/10.1007/978-3-030-32357-8_11
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DOI: https://doi.org/10.1007/978-3-030-32357-8_11
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