Effect of Static Disorder in an Electron FabryPerot Interferometer with Two Quantum Scatte.pdf

Effect of Static Disorder in an Electron Fabry-Perot Interferometer with Two Quantum Scattering Centers 1,2∗ 2 1 3 4 Francesco Ciccarello and G. Massimo Palma , Michelangelo Zarcone , Yasser Omar , Vitor Rocha Vieira 1 CNISM and Dipartimento di Fisica e Tecnologie Relative dell’Universit`a degli Studi di Palermo, Viale delle Scienze, Edificio 18, I-90128 Palermo, Italy 7 2 NEST- INFM (CNR) Dipartimento di Scienze Fisiche ed Astronomiche 0 dell’Universit`a degli Studi di Palermo, Via Archirafi 36, I-90123 Palermo, Italy 0 3 SQIG, Instituto de Telecomunica¸c˜oes, P-1049-001 Lisbon and CEMAPRE, 2 4 ISEG, Technical University of Lisbon, P-1200-781 Lisbon, Portugal Department of Physics, Instituto Superior T´ecnico, Av. Rovisco Pais, 1049-001 Lisbon, Portugal l u J In a recent paper – F. Ciccarello et al., New J. Phys. 8, 214 (2006) – we have demonstrated that the electron transmission properties of a one-dimensional (1D) wire with two identical embedded 3 spin-1/2 impurities can be significantly affected by entanglement between the spins of the scattering ] centers. Such effect is of particular interest in the control of transmission of quantum information l in nanostructures and can be used as a detection scheme of maximally entangled states of two l a