## Task 1. Description

1.Using program gbind prepare plots of the following matrix elements:

<1s|G(R)|1s> , <1s|G(R)|2s>

2.Using the ability of gnuplot to plot analytic functions, find
a

gaussian ( exp(-a*r*r) ),

which fits well the shape of the functions
G(R).

3. Study the matrix elements of

<1s|G(R)|2p>

What is the difference in
shape? Can this be represented by Gaussians? What is the asymptotic
behaviour (for large L) of these functions.

Theory for this task

Instructions for this task

Description, All tasks

Task 2 and 3

Explanation:
The function <1s|G(R)|2p> is obtained by the input
ni li nf lf L
1 0 2 0 0
The function <2p|G2(R)|2p>is obtained by the input
ni li nf lf L
2 1 2 1 2

Index