arXiv:quant-ph/0001115The space of local equivalence classes of mixed two-qubit statesAnthony SudberyPublished Jan 31, 2000• 1 citationarXivHTMLPDFAbstractThis paper is withdrawn by the author. It is superseded by Makhlin's paper quant-ph/0002045.DOI10.48550/arxiv.quant-ph/0001115