Characterizing entanglement with global and marginal entropic measures

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dc.creatorAdesso, Gerardo
dc.creatorIlluminati, Fabrizio
dc.creatorDe Siena, Silvio
dc.date2003-07-28
dc.date2003-12-29
dc.date.accessioned2026-07-07T06:07:27Z
dc.date.available2026-07-07T06:07:27Z
dc.descriptionWe qualify the entanglement of arbitrary mixed states of bipartite quantum systems by comparing global and marginal mixednesses quantified by different entropic measures. For systems of two qubits we discriminate the class of maximally entangled states with fixed marginal mixednesses, and determine an analytical upper bound relating the entanglement of formation to the marginal linear entropies. This result partially generalizes to mixed states the quantification of entaglement with marginal mixednesses holding for pure states. We identify a class of entangled states that, for fixed marginals, are globally more mixed than product states when measured by the linear entropy. Such states cannot be discriminated by the majorization criterion.
dc.description6 pages, 5 color figures in low resolution due to oversizing problems; to get the original high-resolution figures please contact the authors. Minor changes, final version
dc.identifierhttps://arxiv.org/abs/quant-ph/0307192
dc.identifierhttp://arxiv.org/abs/quant-ph/0307192
dc.identifierPhys. Rev. A 68, 062318 (2003)
dc.identifierdoi:10.1103/PhysRevA.68.062318
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91297
dc.subjectQuantum Physics
dc.subjectCondensed Matter
dc.subjectHigh Energy Physics - Theory
dc.subjectMathematical Physics
dc.titleCharacterizing entanglement with global and marginal entropic measures
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