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Résumé |
Many important problem in physics can be attributed to solving accurately Schr\¨odinger equation for 3- and 4-body problem. By solving the equation,
\begin{itemize}
\item we can predict various observable before measurement, and
\item we can obtain new understandings by comparing the
observed data and our theoretical prediction.
\end{itemize}
For this purpose, it is necessary
\begin{itemize}
\item to develop the method to calculate 3- and 4-body
problems precisely, and
\item to apply to various fields such as nuclear physics as well as atomic physics.
\end{itemize}
I have been developing 'Gaussian Expansion Method (GEM)' which is one of few-body calculation method. Here, I explain GEM and its application $^4$He atomic systems. |
