Maximally entangled mixed states and conditional entropies

Journal Article · Tue Feb 01 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.024301· OSTI ID:20650139

Batle, J; Casas, M ^[1]; Plastino, A ^[2]; Plastino, A R ^[3]

---

1. Departament de Fisica, Universitat de les Illes Balears and IMEDEA-CSIC, 07122 Palma de Mallorca (Spain)
2. Argentina's National Research Council (CONICET), Casilla de Correo 727, 1900 La Plata (Argentina)
3. Department of Physics, National University La Plata, Casilla de Correo 727, 1900 La Plata (Argentina)

The maximally entangled mixed states of Munro et al. [Phys. Rev. A 64, 030302 (2001)] are shown to exhibit interesting features vis a vis conditional entropic measures. The same happens with the Ishizaka and Hiroshima states [Phys. Rev. A 62, 022310 (2000)], whose entanglement degree cannot be increased by acting on them with logic gates. Special types of entangled states that do not violate classical entropic inequalities are seen to exist in the space of two qubits. Special meaning can be assigned to the Munro et al. special participation ratio of 1.8.

• OSTI ID: 20650139
• Journal Information: Physical Review. A, Vol. 71, Issue 2; Other Information: DOI: 10.1103/PhysRevA.71.024301; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CORRELATIONS
ENERGY LEVELS
ENTROPY
GATING CIRCUITS
LOGIC CIRCUITS
MIXED STATE
QUANTUM MECHANICS
SPACE