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Static Disorder in a 1D Wire with Two Quantum Scattering Centers | | Francesco Ciccarello
; G. Massimo Palma
; Michelangelo Zarcone
; Yasser Omar
; Vitor Rocha Vieira
; | | Date: |
24 Jan 2007 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | In a recent paper -- F. Ciccarello emph{et al.}, New J. Phys. extbf{8}, 214 (2006) -- we have demonstrated that the electron transmission properties of a one-dimensional (1D) wire with two identical embedded 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 in nanostructures and can be used as a detection scheme of maximally entangled states of two localized spins. In this letter, we relax the constraint that the two magnetic impurities are equal and investigate how the main results presented in the above paper are affected by a static disorder in the exchange coupling constants of the impurities. Good robustness against deviation from impurity symmetry is found for both the entanglement dependent transmission and the maximally entangled states generation scheme. | | Source: | arXiv, cond-mat/0701586 | | Services: | Forum | Review | PDF | Favorites | |
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