quantum mechanics - Why not use the Lagrangian, instead of the Hamiltonian, in nonrelativistic QM? - Physics Stack Exchange
Undergraduate classical mechanics introduces both Lagrangians and Hamiltonians, while undergrad quantum mechanics seems to only use the Hamiltonian. But particle physics, and more generally quantum...
quantum mechanics - Why not use the Lagrangian, instead of the Hamiltonian, in nonrelativistic QM? - Physics Stack Exchange Stack Internal Knowledge at work Bring the best of human thought and AI automation together at your work. Explore Stack Internal Why not use the Lagrangian, instead of the Hamiltonian, in nonrelativistic QM? Ask Question Asked 14 years, 4 months ago Modified 5 years, 1 month ago Viewed 23k times 77 $\begingroup$ Undergraduate classical mechanics introduces both Lagrangians and Hamiltonians, while undergrad quantum mechanics seems to only use the Hamiltonian. But particle
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