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Question: Redefining Dgamma matrices in Physics Package

Question:Redefining Dgamma matrices in Physics Package

hmc54 35 Maple
physics
March 29 2022
2

Hi there,

Is there an easy way to redefine the Dgamma matrices in the Physics package without creating a custom function? I would like to use a form as shown below.

with i running from 1 to 3, i.e. specifying space coordinates and sigma_i being a 2x2 Pauli matrix. The zeroes are 2x2 zero matrices.

where I is a 2x2 identity matrix and again the zeroes are 2z2 zero matrices.

Thanks!
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