Time-Dependent Wave Function of Spherical Harmonics

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SUMMARY

The discussion focuses on deriving the time-dependent wave function for a particle constrained to the surface of a sphere, starting with the initial wave function Ψ(Φ,θ) = (4+√5 +3√5cos2θ)/(8√2π). Participants explore the normalization of this wave function, with one user attempting to normalize it to (2π)¼ but expressing uncertainty about the correctness. The conversation emphasizes the need for a general solution in terms of spherical harmonics and determining the coefficients based on initial conditions.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly wave functions.
  • Familiarity with spherical harmonics and their applications in quantum systems.
  • Knowledge of normalization techniques for wave functions.
  • Basic grasp of series expansions in quantum mechanics.
NEXT STEPS
  • Study the properties and applications of spherical harmonics in quantum mechanics.
  • Learn about the normalization of wave functions in quantum systems.
  • Research methods for determining coefficients in series expansions for wave functions.
  • Explore the time evolution of wave functions using the Schrödinger equation.
USEFUL FOR

Students and professionals in quantum mechanics, particularly those studying wave functions and spherical harmonics, as well as educators looking for examples of time-dependent wave functions.

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Homework Statement


In t=0, wave function of the particle that moves freely on the surface of the sphere has the wave function:

Ψ(Φ,θ) = (4+√5 +3√5cos2θ)/(8√2π)
what is time-dependent wave function?

Homework Equations


Spherical harmonics

The Attempt at a Solution


I tried normalizing this wave function and got (2π)¼. I don't think that is right. Was I even supposed to normalize this function?. Regardless of normalization, I don't know how to proceed.
 
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Do you have a general solution for the wave function in terms of a series of spherical harmonics?

Do you know how to determine the coefficients in that series given an arbitrary initial condition?
 

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