How Do Eigenvalues of a Three-Dimensional Harmonic Oscillator Arise?

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SUMMARY

The discussion centers on the eigenvalues of a three-dimensional harmonic oscillator, specifically addressing the Hamiltonian as the sum of three independent linear oscillators. The wavefunction is expressed as Ψ(x,y,z)=φ(x)φ(y)φ(z), where φ represents the linear-oscillator wavefunction with eigenvalues given by (ħ)ω(v+1/2) for quantum numbers v=0,1,2,... The energy eigenvalue derived from the operator form of L^2 is confirmed to be 2ħ², aligning with option 2 presented in the homework statement.

PREREQUISITES
  • Understanding of quantum mechanics principles, specifically harmonic oscillators.
  • Familiarity with operator notation in quantum mechanics, particularly L^2 and Hamiltonians.
  • Knowledge of wavefunctions and their role in quantum systems.
  • Basic grasp of eigenvalues and eigenstates in the context of quantum mechanics.
NEXT STEPS
  • Study the derivation of eigenvalues for multi-dimensional harmonic oscillators.
  • Learn about the implications of the Hamiltonian operator in quantum mechanics.
  • Explore the mathematical formulation of wavefunctions in quantum systems.
  • Investigate the significance of quantum numbers in determining energy levels.
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Students and researchers in quantum mechanics, particularly those focusing on harmonic oscillators and eigenvalue problems, will benefit from this discussion.

shally
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Homework Statement



Kindly look at the attachment for the statement.

Homework Equations



L^2 (psi) = E (psi)

The Attempt at a Solution



For Part B,
I wrote Lx, Ly, Lz in operator form. Thus I get L^2. L^2 (psi) = E (psi)
psi = E^-alpha.r^2/2
So I get energy eigenvalue 2 h cross square (option 2).


Kindly help with Part A
 

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The Hamiltonian is the sum of those of three independent linear oscillators. The wavefunction is of the form Ψ(x,y,z)=φ(x)φ(y)φ(z), where φ is the linear-oscillator wavefunction, with eigenvalues (hcross)ω(v+1/2); v=0,1,2,... What are the eigenvalues of the three dimensional oscillator then?

ehild
 

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