Waves - bound and unbound states

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SUMMARY

The discussion centers on the relationship between bound and unbound states in wave mechanics, specifically addressing whether unboundedness is a requirement for a traveling wave. It concludes that while unbounded states are typically associated with traveling waves, bound states can be decomposed into traveling wave solutions through time-dependent coefficients. This indicates that bound states can contribute to the formation of traveling waves under certain conditions.

PREREQUISITES
  • Understanding of wave mechanics principles
  • Familiarity with bound and unbound states in quantum mechanics
  • Knowledge of traveling wave solutions and standing waves
  • Basic grasp of time-dependent coefficients in wave equations
NEXT STEPS
  • Explore the mathematical decomposition of traveling waves from bound states
  • Study the properties of standing waves in quantum systems
  • Investigate the role of time-dependent coefficients in wave mechanics
  • Learn about the implications of unboundedness in wave propagation
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Physicists, students of quantum mechanics, and anyone interested in the theoretical aspects of wave behavior in various physical systems.

quasar_4
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I was thinking about bound and unbound states the other day and want to know:

Is unboundedness a requirement for a traveling wave? That is, if you were to build a beams from bound states, would they become standing waves?
 
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Well one can decompose a traveling wave solution into an infinite sum of bound states. it's all in the time dependent coefficients.
 

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