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Higher-dimensional extensions of Pauli spin matrices

J F Stephany

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The principle of basis set representation in terms of coordinate interchange matrices, of which the Pauli spin matrices are an example in two dimensions, are extended to three and four dimensions. The four-dimensional basis set of coordinate interchange matrices satisfies the usual conditions of completeness, but the three-dimensional basis set cannot be complete under any circumstances and an 'anticomplete' property is assigned to it. The coefficients of the basis set, when used to represent an arbitrary matrix, form a Hadamard transform of the cyclically interchanged arbitrary matrix.


PACS

02.10.Yn Matrix theory

02.30.Tb Operator theory

MSC

05B20 Matrices (incidence, Hadamard, etc.)

15A24 Matrix equations and identities

Subjects

Mathematical physics

Dates

Issue 10 (October 1979)



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