Journal of Mathematical Physics

Orbits of the rotation group on the density matrices of spin-1 particles

Michel Daumens, Marcel Perroud

Published Jul 1, 1977• 0 citations

Abstract

The SO(3) orbits of the spin-one mixed states, contained in each SU(3) orbit are shown to be characterized by the squares (defined by means of a symmetric bilinear form) of the eigenvectors of the density matrices. The orbits of matrices diagonalizable by a rotation in a spherical basis are deduced, and quadrupole matrices are considered as a special case.

DOI: 10.1063/1.523433

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