Posted by M on March 14, 2014, 10:36 am
The question says to use the result of part a (I assume the expression just derived for the total energy) to calculate the energy in terms of alpha. I may be missing something obvious here, but from the equations given for density of spin up/down, n can be substituted for in the original energy expression, but now it is in terms of alpha and n up or down and I'm not sure really how to proceed. Help much appreciated, thanks!!
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