# Momentum term to be expanded in dirac gamma matrices

## 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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## 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?

TSny
Homework Helper
Gold Member
$$\pi = \frac{\partial \mathcal{L}}{\partial \dot{q}} = i \hbar \gamma^0$$
That looks odd. Can you give us the Lagrangian that you're starting with?

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.