Show that the Pauli matrices generate a matrix representation of Lie group elements having the form as

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Show that the Pauli matrices generate a matrix representation of Lie group elements having the form

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as required by Problem 3.4 .

Data from Problem  3.4

Show that the most general form for \(2 \times 2\) unitary matrices of unit determinant is

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where \(a\) and \(b\) are complex numbers.

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