Communications in Mathematical Physics · 2007 · 75 citations · 12 references
Natural SciencesPhysicsSpectroscopySpectral AnalysisSpectral Data ProcessingSpectral InterpretationSpectral TheoryClebsch - Gordan CoefficientsSpectral CalculationsWigner-eckart Theorem
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Estimating the spectrum of a density operator
Michael Keyl, Reinhard F. Werner · Physical Review A · 2001 · 174 citations · Full text