- #1
anklimekruk
- 30
- 1
Homework Statement
How to derive eq.3.34 in Lancaster's book QFT for the gifted amateur
Homework Equations
##\hat H= \int d^3 p E_p\hat a\dagger_p\hat a_p##
The Attempt at a Solution
Comparing
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##?
Deriving an equation allows us to understand the relationship between different variables and how they impact each other. It also helps us to make predictions and solve problems in various fields of science and mathematics.
The steps involved in deriving an equation include identifying the given variables, determining the relationships between the variables, using mathematical operations to manipulate the variables, and finally arriving at the desired equation.
No, not all sets of data can be used to derive an equation. The data must have a pattern or a relationship between the variables in order for an equation to be derived.
The precision of an equation derived from experimental data depends on the accuracy and reliability of the data collected. The more precise and accurate the data, the more precise the derived equation will be.
Yes, an equation can be derived for most scientific phenomena as long as there is a relationship between the variables involved. However, some phenomena may be too complex to be accurately described by a single equation.