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a\ Groued state is {o,00) . not chegenerate
First orcler correction gf: <o,0,0f [ix !20,0)
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oo. Since KK, Hy = O
Secon yrder correction .
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rove 2. ee
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ex cited states i fy nite [im et Ne
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H. 42 HOY ctond in excited stetes is anlimnted sa no BEC
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He ay Have Six Single perticle states: ,
Blmse E>? Mmge-F P&E Taye (tengtOD, lye D3
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Secord 2 necdls © hitFerent ctete, 59 SF clyices.
But order ghoesnt matter, so total clesenerecy #5
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| WN Too. spin t 3 combre to melee S= © or 4
Two spin- 1s Combine fo make b= OQ 1, of %
oe
Wher con sicher all together, need fo meke
Sucre Sym etry 13 obeyed: _
$7 O 3: aati symetee exchery &
$= 1 : Sypmmetele
From Clebsch- Gorglen telle , see
b+ 9, 22. Syenmete:¢
Ly 4 : antiosymme tic
Neect ent symmedtre total, 52 can have ;
Sz 0 wath t=O) Q a Te OO, 2%
Se toouetth ps f =) T= 9,4,
\S2 poss bilities are
(g20, LO JaO)! 4 stete Set bet Dery. F stetes |
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(S20, L#2, Te V1 BD otetes
(S21, WOE a lete 1s Ste pe 52 (5 A
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