Abstract
The purity of spin-j states is expressed through measurable tomographic probabilities. Along with the general formula, we also establish particular relations for conventional spin tomography, spin tomography with a finite number of rotations, angular tomography, and some other types of fair tomographic-probability maps and quasidistributions.
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Filippov, S.N., Man’ko, V.I. Purity of spin states in terms of tomograms. J Russ Laser Res 34, 14–21 (2013). https://doi.org/10.1007/s10946-013-9319-x
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DOI: https://doi.org/10.1007/s10946-013-9319-x