In textbooks, the ladder operators are always defined," and shown to 'raise' the state of a system, but they are never actually derived.
Does one find them simply by trial and error? Or is there a more systematic method/approach to obtain them?
In textbooks, the ladder operators are always defined," and shown to 'raise' the state of a system, but they are never actually derived.
Does one find them simply by trial and error? Or is there a more systematic method/approach to obtain them?
What is stagnation point in fluid mechanics. At the open end of the pitot tube the velocity of the fluid becomes zero.But that should result...
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