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ftr
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I was reading this thread by stevendaryl
https://www.physicsforums.com/threads/second-quantization-vs-many-particle-qm.835472/
I have two questions
1. which QFT picture are those, Schrodinger, path integral or Heisenberg.
2.In QM the creation/annihilation operators raise and lower energies, but they don't create and destroy particles in the strict sense, let alone the particles having different spins, being scalar one time and bispinor another and vector in another. So why it is said that QFT is a generalization of multi particle QM, and how does QFT generate those different particle and converts them one type to another or others.
https://www.physicsforums.com/threads/second-quantization-vs-many-particle-qm.835472/
I have two questions
1. which QFT picture are those, Schrodinger, path integral or Heisenberg.
2.In QM the creation/annihilation operators raise and lower energies, but they don't create and destroy particles in the strict sense, let alone the particles having different spins, being scalar one time and bispinor another and vector in another. So why it is said that QFT is a generalization of multi particle QM, and how does QFT generate those different particle and converts them one type to another or others.
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