Exercise 8.15: Spin One-Half Particle | Mike F's Phys 4241

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SUMMARY

In Exercise 8.15 of Mike F's Phys 4241 course, the discussion clarifies that imaginary solutions to the differential equation were not discarded; instead, they were expressed as linear combinations of real solutions. The coefficients of these combinations can be complex, allowing for a comprehensive representation of the solutions. This understanding is crucial for accurately interpreting the behavior of spin one-half particles in quantum mechanics.

PREREQUISITES
  • Understanding of differential equations
  • Familiarity with quantum mechanics concepts, specifically spin one-half particles
  • Knowledge of linear algebra, particularly linear combinations
  • Basic grasp of complex numbers and their applications in physics
NEXT STEPS
  • Study the role of complex coefficients in quantum mechanics
  • Explore linear combinations of solutions in differential equations
  • Investigate the implications of spin one-half particles in quantum theory
  • Review the mathematical framework of quantum mechanics, focusing on operators and eigenstates
USEFUL FOR

Students of quantum mechanics, particularly those studying spin systems, physicists working with differential equations, and anyone seeking to deepen their understanding of complex solutions in physical contexts.

ehrenfest
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Homework Statement


http://mikef.org/files/phys_4241_hw19.pdf
I am having trouble figuring out why the imaginary solutions to the differential equation were thrown out in Exercise 8.15.


Homework Equations





The Attempt at a Solution

 
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The didn't throw out any imaginary solutions. The just wrote the solutions in terms linear combinations of real solutions. The coefficients can always be complex.
 

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