P317 computer lab

There will be one computer lab project. For this, please contact Prof. Brouwer to arrange an account on the Cornell University Physics Educational Computing Facility, if you do not already have one.

You may team up into pairs to collaborate on the computer lab projects. In that case, each pair needs to hand in only one completed program.

You may use any computer language you wish, provided the code can be demonstrated in the Rockefeller Hall computer labs. At the Cornell University Physics Educational Computing Facility, compilers are available for the following languages:

Computer Language	compiler
C	gcc
C++	g++
fortran	g77
pascal	gpc
python	python
maxima	xmaxima
octave	octave
java	jikes

You are asked to provide three versions of the computer program:
Version 1, in which you manually find energy eigenvalues for the hydrogen atom (due September 16th),
Version 2, in which you automate the search for energy eigenvalues (due September 30th),
Version 3, in which you find energy eigenvalues for multi-electron atoms (due October 14th).

The exercises from the assignment should be handed in on paper, like a homework assignment. The computer code can be emailed to Prof. Brouwer and/or to Chris Mayes. Please list who are the people in your group! An executable file, as an attachment to the email, is preferred. If that is not possible (e.g., if you use octave), please include a detailed description of what commands need to be invoked to make the program run in the Rockefeller computer labs.

The computer lab assignment has been handed out in class.
Note: in order to avoid a warning message when compling your programs, you should replace the statement "#include <iostream.h>" by "#include <iostream>", and add the line "using namespace std;" after the last "include" statement. See the assignment on this website for details.

If you decide to program in c++, you may find it useful to use the plotting routines routines GPlot.h. You can find more information about these routines in GPlot.c, documentation GPlot.txt, and the example GPlotexample.c.

For the third version of the computer lab, you need a reference to ionization energies. You can find one at the NIST website. You also need a reference for X-ray edge energies. These can also be found at the NIST website. (Use the search engine and look for K edge, L1 edge, and L2 edge.) Exercise 9 (the extra credit exercise) refers to Table 10.1of the text. This table is in last year's textbook, not in this year's textbook. You can find the table reproduced below.

Element	3Li	11Na	19K	37Rb	55Cs
Subshell	2p	3p	4p	5p	6p
Spin-orbit splitting	0.42 x 10-4 eV	21 x 10-4 eV	72 x 10-4 eV	295 x 10-4 eV	687 x 10-4 eV