Entanglement and pseudomixtures
arXiv:quant-ph/9806011
Abstract
In a recent paper Sanpera et al. have shown, that for the simplest binary composite systems any density matrix can be described in terms of only product vectors. The purpose of this note is to show that posibillity of decomposing any state as pseudomixtures does not depend on dimension of the subsystems.
to be published in special issue of Acta Phys.Slov. on Q.Optics and Q.Information (June 98)