Momentum term to be expanded in dirac gamma matrices

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Homework Help Overview

The discussion revolves around expanding matrices related to the momentum term in the context of Dirac gamma matrices, specifically focusing on the expression \(\pi = \frac{\partial \mathcal{L}}{\partial \dot{q}} = i \hbar \gamma^0\).

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants express confusion about how to expand the term \(i\hbar \gamma^0\) and seek clarification on the Lagrangian involved. One participant questions the initial setup by asking for the Lagrangian being used.

Discussion Status

The discussion is ongoing with participants attempting to clarify the context and assumptions. Some guidance has been offered regarding the nature of the gamma matrices, but there is no explicit consensus on the next steps or resolution of the confusion.

Contextual Notes

There is a noted lack of information regarding the specific Lagrangian that the original poster is using, which may be critical for further understanding the problem.

help1please
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Homework Statement



I need help to expand some matrices

Homework Equations



\pi = \frac{\partial \mathcal{L}}{\partial \dot{q}} = i \hbar \gamma^0

The Attempt at a Solution



How do I expand

i\hbar \gamma^0

the matrix in this term, I am a bit lost. All the help would be appreciated!
 
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help1please said:

Homework Statement



I need help to expand some matrices

Homework Equations



\pi = \frac{\partial \mathcal{L}}{\partial \dot{q}} = i \hbar \gamma^0

The Attempt at a Solution



How do I expand

i\hbar \gamma^0

the matrix in this term, I am a bit lost. All the help would be appreciated!


Can no one answer my question?
 
help1please said:
\pi = \frac{\partial \mathcal{L}}{\partial \dot{q}} = i \hbar \gamma^0

That looks odd. Can you give us the Lagrangian that you're starting with?
 
TSny said:
That looks odd. Can you give us the Lagrangian that you're starting with?

It has been a while since I dabbled with Dirac matrices... factoring gamma zero is simply 1.


DUH to me.
 

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