Limiting Electron Speed: The Smallest 1D Box

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SUMMARY

The discussion centers on determining the smallest one-dimensional box that can confine an electron to a maximum speed of 10 m/s, utilizing the principles of quantum mechanics. The uncertainty principle is crucial, as it relates the momentum (p) of the electron to its speed (v) and the box length (L). Specifically, the momentum is defined by the equation p = h/2L, where h is Planck's constant. This relationship allows for the calculation of the box length necessary to achieve the desired speed constraint.

PREREQUISITES
  • Understanding of quantum mechanics principles, specifically the uncertainty principle.
  • Familiarity with wave functions and their implications in particle confinement.
  • Knowledge of momentum and its relationship to speed in quantum systems.
  • Basic grasp of Planck's constant and its role in quantum physics.
NEXT STEPS
  • Explore the implications of the uncertainty principle in quantum mechanics.
  • Study the derivation and applications of wave functions in particle confinement.
  • Learn about the relationship between momentum and speed in quantum particles.
  • Investigate the calculations involving Planck's constant in various quantum scenarios.
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Students of quantum mechanics, physicists, and anyone interested in the behavior of particles in confined spaces will benefit from this discussion.

doublemint
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What is the smallest 1D box in which you can confine an electron if you want to know for certain that the electron's speed is no more than 10m/s?

I am guessing it has to do with the wave function, but I have no idea where to start...

Any help would be great!

DoubleMint
 
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Think about the uncertainty principle...
 
mmm i see it. v = p/m which p=h/2L where is the length of the box!
Thanks!
 

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