Time Independent Schrodinger Equation

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SUMMARY

The discussion focuses on verifying that the plane wave function ψ(x) = Ae-ikx is a solution to the time-independent Schrödinger equation for a free particle in one dimension. Participants highlight that while the function satisfies the equation, it cannot be normalized due to its infinite spatial extent and constant magnitude. The phase of the wave function varies in space and time, leading to a non-normalizable condition when integrated over all space.

PREREQUISITES
  • Understanding of the time-independent Schrödinger equation
  • Familiarity with wave functions in quantum mechanics
  • Knowledge of normalization conditions for quantum states
  • Basic concepts of complex numbers and their magnitudes
NEXT STEPS
  • Study the derivation of the time-independent Schrödinger equation
  • Learn about normalization techniques for wave functions
  • Explore the implications of non-normalizable wave functions in quantum mechanics
  • Investigate the role of plane waves in quantum mechanics and their applications
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Students of quantum mechanics, physicists working with wave functions, and educators seeking to clarify the concepts of the time-independent Schrödinger equation and normalization in quantum systems.

mrojc
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Homework Statement

Verify that a plane wave ψ(x) = Ae-ikx is a solution to the time independent Schrödinger equation for a free particle in one dimension. Can it be normalised? Why?[/B]

Homework Equations

The Attempt at a Solution


My lecturer's notes are all over the place, which is frustrating. The only notes that I seem to have on this question, I cannot understand because they're scattered. If anyone has a link to a proof, or notes on it, I would be so grateful.
 
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Just look up the equation, and plug in that solution, and show it works. Then notice that the solution is infinite in space, with constant magnitude (it is a complex number of magnitude |A|2 but a phase that varies in space and time), so it cannot be normalized to unity when integrated over all space.
 

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