How to Express the Wavefunction at t>0?

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SUMMARY

The discussion focuses on expressing the wavefunction Ψ(x, t) for a particle described by the initial eigenfunction Ψ(x) = iAe^(-x/2) for x ≥ 0 and Ψ(x) = 0 for x < 0. The solution involves separating the wavefunction into spatial and temporal components, leading to the form Ψ(x, t) = Ψ(x) * φ(t), where φ(t) is derived from the energy eigenvalue E. The participants emphasize the importance of using the time-dependent Schrödinger equation to find φ(t) and the implications of the particle's initial conditions on the wavefunction's evolution.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly wavefunctions and eigenstates.
  • Familiarity with the time-dependent Schrödinger equation.
  • Knowledge of complex numbers and their application in quantum mechanics.
  • Basic concepts of energy eigenvalues and their role in wavefunction evolution.
NEXT STEPS
  • Study the time-dependent Schrödinger equation in detail.
  • Learn about the separation of variables technique in quantum mechanics.
  • Explore the implications of boundary conditions on wavefunctions.
  • Investigate the role of normalization in quantum mechanics wavefunctions.
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Students of quantum mechanics, physicists working on wavefunction analysis, and educators teaching advanced physics concepts.

moorey6969
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Homework Statement


at t=0 a particle is described by the eigenfunction Ψ(x) given by:
Ψ(x)= iAe^(-x/2) given that x≥0 and 0 given that x<0
where A is a real number.
assuming the system is in a well defined eigenstate with total energy E, write an expression for the corresponding wavefunction.

Homework Equations





The Attempt at a Solution

 
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i guess a good start is to note that the wavefunction can be written as a function of x dependence multiplied with a function of t dependence ..

please try and show your attempt of solving the question ..
 

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