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Question: Creating gamma matrices (4X4) from two matrices (Pauli matrices 2X2) and zero matrice (2X2)

Question:Creating gamma matrices (4X4) from two matrices (Pauli matrices 2X2) and zero matrice (2X2)

lemelinm 1550 Maple
matrix pauli quantum-field-theory
3 hours ago
1

So I want to create gamma matrices like this one:

and the four Pauli matrices. So how can I create this one if I have defined the identity matrix (2X2) and the zero matrix(2X2).

 I have tried this:

with(LinearAlgebra);
ga_zero := matrix(4, 4, [ZeroMatrix(2), IdentityMatrix(2), -IdentityMatrix(2), ZeroMatrix(2)]);

Which, of course, did not work. I knew it from the start. But I am wondering how to do it.

Thank you in advance for your help

Mario
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