Origin of the schroedinger's wave equation

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SUMMARY

Schrödinger's wave equation was derived through heuristic arguments rather than formal proof, influenced by the concept of matter waves introduced by Louis de Broglie. Schrödinger initially explored the relativistic case, leading to the Klein-Gordon equation, before formulating his non-relativistic wave equation, which accurately described the energy levels of hydrogen. The equation is foundational in nonrelativistic quantum mechanics and is treated as an axiom due to its lack of formal derivation. Its interpretation as a probability wave function, proposed by Max Born, remains the most widely accepted understanding of its implications.

PREREQUISITES
  • Understanding of Fourier analysis and wave packets
  • Familiarity with quantum mechanics concepts, particularly eigenvalue problems
  • Knowledge of classical mechanics and its relationship to wave optics
  • Basic grasp of the historical context of quantum theory, including de Broglie's contributions
NEXT STEPS
  • Study the derivation of the time-independent Schrödinger equation from de Broglie's wave concept
  • Explore the implications of the Klein-Gordon equation in relativistic quantum mechanics
  • Investigate the relationship between Schrödinger's equation and matrix mechanics
  • Examine the role of symmetry groups in quantum mechanics, particularly the Galilean group
USEFUL FOR

Physicists, quantum mechanics students, and researchers interested in the historical development and foundational principles of quantum theory.

  • #31
Schrödinger's equation can be arrived at using symmetry arguments. Specifically, you write out the commutation relations that exist between the generators of the Galilei group and then choose the position representation. What you find is that the generator of time translations has the same form that is usually ascribed to the Hamiltonian. Details can be found, for example, in the third chapter of Ballentine's "Quantum Mechanics: A Modern Development".
 

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