ch39-p024 - 24. We are looking for the values of the ratio...

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E hm L L n L n L nn nx ny x x y y xy , 22 2 2 2 2 2 8 1 4 =+ F H G I K J F H G I K J and the corresponding differences. (a) For n x = n y = 1, the ratio becomes 11 2 5 1 4 + = .. (b) For n x = 1 and n y = 2, the ratio becomes 14 2 0 0 1 4 + = b g . . One can check (by computing other ( n x , n y ) values) that this is the next to lowest energy in the system. (c) The lowest set of states that are degenerate are ( n x , n y ) = (1, 4) and (2, 2). Both of these states have that ratio equal to 6 5 0 0 1 4 + = b g (d) For n x = 1 and n y = 3, the ratio becomes 19
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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