<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Dear Wang,<br><br> <br><div><font size="2" face="Verdana">>I'm sorry for my terrible opinion. eigenSTATE should be the </font></div>
<div><font size="2" face="Verdana">>eigenvector of matrix (quantum operator) and eigenVALUE should</font></div>
<div><font size="2" face="Verdana">>be the mean value of quantum operator. I have read some >quantum mechanics textbooks as Eyvaz suggested (C.KITTEL), >unfortunately I fail to make a connection between the book
>and application. </font></div>
<div><font size="2" face="Verdana"> </font></div>
<div><font size="2" face="Verdana">>> My brain doesn't work.</font></div><span style="font-family: monospace;"> </span><br>Wait, wait, Kittel is a solid state textbook, but not quantum mechanics one. If you like you can read QM textbooks like Landau&Lifshits (volume 3, Quantum Mechanics), Shiff, Messia, Cohen-Tannondji etc.<br>There is a textbook by Flugge with QM problems and their solutions.<br><br>So, paper and pen are your good friends. <br><br>Bests,<br>Eyvaz.<br> <br><br>-------------------------------------------------------------------<br>
Prof. Eyvaz Isaev, <br>
Theoretical Physics Department, Moscow State Institute of Steel & Alloys, Russia, <br>
Department of Physics, Chemistry, and Biology (IFM), Linkoping University, Sweden <br>
Condensed Matter Theory Group, Uppsala University, Sweden <br>
Eyvaz.Isaev@fysik.uu.se, isaev@ifm.liu.se, eyvaz_isaev@yahoo.com<br><br><br></td></tr></table><br>