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- Universitat de les Illes BalearsES24 papers
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4 papers · 2 filters
Quantum Formulation of Fractional Orbital Angular Momentum
J. B. Goette, S. Franke-Arnold, R. Zambrini +1
The quantum theory of rotation angles (S. M. Barnett and D. T. Pegg, Phys. Rev. A, 41, 3427-3425 (1990)) is generalised to non-integer values of the orbital angular momentum. This…
Entanglement and the Lower Bounds on the Speed of Quantum Evolution
A. Borrás, M. Casas, A. R. Plastino +1
The concept of quantum speed limit-time (QSL) was initially introduced as a lower bound to the time interval that a given initial state may need so as to evolve into a state…
Maximally Entangled Mixed States and Conditional Entropies
J. Batle, M. Casas, A. Plastino +1
The maximally entangled mixed states of Munro, James, White, and Kwiat [Phys. Rev. A {\bf 64} (2001) 030302] are shown to exhibit interesting features vis a vis conditional entropi…
Werner states and the two-spinors Heisenberg anti-ferromagnet
J. Batle, M. Casas, A. Plastino +1
We ascertain, following ideas of Arnesen, Bose, and Vedral concerning thermal entanglement [Phys. Rev. Lett. {\bf 87} (2001) 017901] and using the statistical tool called {\it entr…