QFT - Field operator commutation

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Discussion Overview

The discussion revolves around the commutation relation in quantum field theory (QFT), specifically the equation involving the field operator and its time derivative. Participants are exploring how to derive this equation, seeking resources and guidance.

Discussion Character

  • Homework-related

Main Points Raised

  • The original poster (OP) expresses uncertainty about deriving the equation [Φ(x,t),∂/∂tΦ(y,t)]=iZ∂3(x-y) from their QFT course materials.
  • One participant suggests that the OP would receive better responses if they formatted their equation using LaTeX.
  • A second participant echoes the suggestion to use LaTeX for better clarity and expresses appreciation for the guidance on formatting.
  • A later reply notes that the OP has reposted the question in LaTeX format in a new thread, leading to the closure of the original thread to prevent duplication.

Areas of Agreement / Disagreement

There is no disagreement present, but the discussion is unresolved regarding the derivation of the equation, as the OP has moved their question to a new thread.

abivz
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TL;DR
Help with getting the dirac delta function from the field operator commutation
Hi everyone, I'm taking a QFT course this semester and we're studying from the Otto Nachtman: Texts and Monographs in Physics textbook, today our teacher asked us to get to the equation:
[Φ(x,t),∂/∂tΦ(y,t)]=iZ∂3(x-y)​
But I am unsure of how to get to this, does anyone have any advice or any textbooks or notes I could check? Thanks in Advance
 
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Nugatory said:
You will likely get better answers faster if you format your equation properly using Latex: https://www.physicsforums.com/help/latexhelp/
thank you! I'm new to this forum and was unsure if I could type my equations in LaTex, thanks :)
 
It looks like the OP has re-posted the question in LaTeX in a new thread, so this one is closed to avoid duplication.
 

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