The discussion revolves around deriving equation 3.34 from Lancaster's book "QFT for the Gifted Amateur." The context involves quantum field theory, specifically focusing on the Hamiltonian operator in different forms.
The discussion is ongoing, with participants expressing a desire for more context and detail to facilitate understanding. Some participants indicate a lack of access to the book, which may hinder their ability to contribute effectively. There is an acknowledgment of the potential for further questions to arise as the discussion progresses.
Participants note the challenge of deriving the equation without direct access to the text, which may limit their ability to provide informed responses. There is a suggestion that more detailed context could help clarify the derivation process.
If they are like me, they do not have easy access to that book and so would have nothing useful to say. Perhaps if you wrote out more context and detail some of us could, indeed, figure out what was happening. (Not guaranteed, but just maybe possible.)anklimekruk said:I would like to know why my question is left without an answer nor a comment
I wrote the question so that there is no need for the bookRay Vickson said:If they are like me, they do not have easy access to that book and so would have nothing useful to say. Perhaps if you wrote out more context and detail some of us could, indeed, figure out what was happening. (Not guaranteed, but just maybe possible.)
anklimekruk said:I wrote the question so that there is no need for the book
Maybe ##E_p## is the Energie in the momentum which replaces ##\hbar w_k## in 2.41.There is no more explanation in the book for as much as I can see.Ray Vickson said:You mean we don't need to know what is the form of ##E_p## in the integral ##\int d^3 p E_p a_p^+ a_p##?