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Hermitian Schmidt Decomposition and Twin Observables of Bipartite Mixed States

F. Herbut
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Abstract

It is shown that for each mixed state there exists a Schmidt (super state vector) decomposition in terms of Hermitian operators. Its utilization for finding all twins is illustrated in full detail in the case of the two spin-one-half-particle states with maximally disordered subsystems (mixtures of Bell states).

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F. Herbut. 2003-05-29. Hermitian Schmidt Decomposition and Twin Observables of Bipartite Mixed States. https://doi.org/10.1088/0305-4470%2F35%2F7%2F314

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