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Effect of static disorder in an electron Fabry-Perot interferometer with two quantum scattering centers

  • Quantum Information and Quantum Computation
  • Published:
Laser Physics

Abstract

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 spin-1/2 impurities can be significantly affected by entanglement between the spins of the scattering centers. Such an effect is of particular interest in the control of the 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.

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References

  1. M. A. Nielsen, and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge Univ. Press, Cambridge, 2000).

    MATH  Google Scholar 

  2. G. Burkhard, D. Loss, and E. V. Sukhorukov, Phys. Rev. B 61, R16303 (2000); P. Samuelsson, E. V. Sukhorukov, and M. Büttiker, Phys. Rev. B 70, 115330 (2004); F. Taddei and R. Fazio, Phys. Rev. B 65, 075317 (2002).

  3. F. Ciccarello, G. M. Palma, M. Zarcone, et al., New J. Phys. 8, 214 (2006); quant-ph/0611025.

    Article  ADS  Google Scholar 

  4. A. Stern, Y. Aharonov, and Y. Imry, Phys. Rev. A 41, 3436 (1990), S. K. Joshi, D. Sahoo, and A. M. Jayannavar, Phys. Rev. B 64, 075320 (2001).

    Article  ADS  Google Scholar 

  5. A. T. Costa, Jr., S. Bose, and Y. Omar, Phys. Rev. Lett. 96, 230501 (2006).

    Google Scholar 

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Author information

Authors and Affiliations

  1. CNISM and Dipartimento di Fisica e Tecnologie Relative dell’Università degli Studi di Palermo, Viale delle Scienze, Edificio 18, Palermo, I-90128, Italy

    F. Ciccarello & M. Zarcone

  2. NEST-INFM (CNR) and Dipartimento di Scienze Fisiche ed Astronomiche dell’Università degli Studi di Palermo, Via Archirafi 36, Palermo, I-90123, Italy

    F. Ciccarello & G. M. Palma

  3. SQIG, Instituto de Telecomunicações, P-1049-001 Lisbon and CEMAPRE, ISEG, Technical University of Lisbon, Lisbon, P-1200-781, Portugal

    Y. Omar

  4. CFIF and Department of Physics, Instituto Superior Técnico, Av. Rovisco Pais, Lisbon, 1049-001, Portugal

    V. R. Vieira

Authors
  1. F. Ciccarello
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  2. G. M. Palma
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  3. M. Zarcone
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  4. Y. Omar
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  5. V. R. Vieira
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Original Text © Astro, Ltd., 2007.

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Ciccarello, F., Palma, G.M., Zarcone, M. et al. Effect of static disorder in an electron Fabry-Perot interferometer with two quantum scattering centers. Laser Phys. 17, 889–892 (2007). https://doi.org/10.1134/S1054660X07060175

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  • DOI: https://doi.org/10.1134/S1054660X07060175

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