Monday 21 January 2019

In what sense is a quantum field an infinite set of harmonic oscillators?


In what sense is a quantum field an infinite set of harmonic oscillators, one at each space-time point?
When is it useful to think of a quantum field this way?



The book I'm reading now, QFT by Klauber, claims its not true, which is it?


I would like to understand this analogy a little better.




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