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degeneracy confusion in Quantum Mechanics

degeneracy confusion in Quantum Mechanics - Physics Forum

degeneracy confusion in Quantum Mechanics - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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Old 12-01-2007, 12:13 AM
Harvey
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Default degeneracy confusion in Quantum Mechanics



Hi

Please can someone clear up my confusion abut degeneracy

Consider a particle trapped in a cubic box of length say L. The
wavefunction Psi is specified as Psi(n1,n2,n3)=Asin(n1*pi*x/
L)sin(n2*pi*x/L)sin(n3*pi*x/L)exp(-E(n1n2n3)t/h_bar )
When n1=n2=n3=1 the books say that the degeneracy is 0 - Yet when
n1=1 n2=1 n3=2 the degeneracy is 3 WHY!!!!.

Hope someone out there can clear up my confusion.

Many Thanks

Harvey
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