Stephen comments on No Individual Particles - Less Wrong

15 Post author: Eliezer_Yudkowsky 18 April 2008 04:40AM

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Comment author: Stephen 18 April 2008 02:39:03PM 1 point [-]

Technical caveat: I should have said it's actually the Hamiltonian, not the Lagrangian that directly tells you the energy of a configuration. (Its easy to convert between Hamiltonians and Lagrangians though, and it turns out Lagrangians are handier for QFT.)