Confind electron Total energy (Quantum)

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SUMMARY

The discussion focuses on calculating the total energy of an electron confined in a one-dimensional infinite potential well, specifically a wire of length L = 1 nm. The wave function is defined as PSI = A Sin(kx), with k determined by the equation k = nπ/L, where n is a quantum number. The normalization constant A is calculated as A = sqrt(2/L). The relationship between k and energy E is established through the equation k = sqrt(2mE/h²), allowing for the determination of total energy using boundary conditions.

PREREQUISITES
  • Understanding of quantum mechanics principles, specifically the particle in a box model.
  • Familiarity with wave functions and normalization in quantum systems.
  • Knowledge of the Schrödinger equation and its applications.
  • Basic grasp of quantum numbers and their significance in energy quantization.
NEXT STEPS
  • Study the derivation of the Schrödinger equation for one-dimensional systems.
  • Explore the implications of boundary conditions on wave functions in quantum mechanics.
  • Learn about energy quantization in infinite potential wells and its applications.
  • Investigate the physical significance of quantum numbers in determining energy levels.
USEFUL FOR

Students and professionals in physics, particularly those focusing on quantum mechanics, as well as educators teaching the principles of quantum confinement and energy quantization.

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Homework Statement


An electron in a very thin wire of length L= 1 nm (10-9 m) can be modeled as a particle in an infinite box.
Solve for total energy using boundary conditions at L

2. The attempt at a solution
WaveFunction -- > PSI = A Sin ( kx ) ;
k = n*pi/L ; A = sqrt(2/L) "After normalizing"
Boundary condition at L -- > PSI(L) = 0
now can I solve for E using this equation ?
n*pi/L = k = sqrt( 2m*E/h^2)
?
 
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