### Abstract

Lingua originale | English |
---|---|

Numero di pagine | 10 |

Rivista | Physical Review A |

Volume | 99 |

Stato di pubblicazione | Published - 2019 |

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### All Science Journal Classification (ASJC) codes

- Atomic and Molecular Physics, and Optics

### Cita questo

*Physical Review A*,

*99*.

**Bounds on the entanglement of two-qutrit systems from fixed marginals.** / Messina, Antonino; Sarbicki, Gniewomir; Chruściński, Dariusz; Horodecki, Paweł; Baio, Giuseppe; Messina, Antonino; Baio, Giuseppe.

Risultato della ricerca: Article

*Physical Review A*, vol. 99.

}

TY - JOUR

T1 - Bounds on the entanglement of two-qutrit systems from fixed marginals

AU - Messina, Antonino

AU - Sarbicki, Gniewomir

AU - Chruściński, Dariusz

AU - Horodecki, Paweł

AU - Baio, Giuseppe

AU - Messina, Antonino

AU - Baio, Giuseppe

PY - 2019

Y1 - 2019

N2 - We discuss the problem of characterizing upper bounds on entanglement in a bipartite quantum system when only the reduced density matrices (marginals) are known. In particular, starting from the known two-qubit case, we propose a family of candidates for maximally entangled mixed states with respect to fixed marginals for two qutrits. These states are extremal in the convex set of two-qutrit states with fixed marginals. Moreover, it is shown that they are always quasidistillable. As a by-product we prove that any maximally correlated state that is quasidistillable must be pure. Our observations for two qutrits are supported by numerical analysis.

AB - We discuss the problem of characterizing upper bounds on entanglement in a bipartite quantum system when only the reduced density matrices (marginals) are known. In particular, starting from the known two-qubit case, we propose a family of candidates for maximally entangled mixed states with respect to fixed marginals for two qutrits. These states are extremal in the convex set of two-qutrit states with fixed marginals. Moreover, it is shown that they are always quasidistillable. As a by-product we prove that any maximally correlated state that is quasidistillable must be pure. Our observations for two qutrits are supported by numerical analysis.

UR - http://hdl.handle.net/10447/364605

UR - http://harvest.aps.org/bagit/articles/10.1103/PhysRevA.99.062312/apsxml

M3 - Article

VL - 99

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

ER -