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Electron interference and entanglement in coupled 1D systems with noise

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Abstract

We estimate the role of noise in the formation of entanglement and in the appearance of single- and two-electron interference in systems of coupled one-dimensional channels. Two cases are considered: a single-particle interferometer and a two-particle interferometer exploiting Coulomb interaction. In both of them, environmental noise yields a randomization of the carrier phases. Our results assess how the complementarity relation linking single-particle behavior to nonlocal quantities (such as entanglement and environment-induced decoherence) acts in electron interferometry. We show that in an experimental implementation of the setups examined, one- and two-electron detection probability at the output drains can be used to evaluate the decoherence and the degree of entanglement.

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Authors and Affiliations

  1. ARCES, Alma Mater Studiorum, Università di Bologna, Via Toffano 2/2, 40125, Bologna, Italy

    F. Buscemi

  2. Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, Via Campi 213/A, 41125, Modena, Italy

    P. Bordone

  3. Centro S3, CNR-Istituto Nanoscienze, Via Campi 213/A, 41125, Modena, Italy

    P. Bordone & A. Bertoni

Authors
  1. F. Buscemi
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  2. P. Bordone
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  3. A. Bertoni
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Correspondence to F. Buscemi.

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Buscemi, F., Bordone, P. & Bertoni, A. Electron interference and entanglement in coupled 1D systems with noise. Eur. Phys. J. D 66, 312 (2012). https://doi.org/10.1140/epjd/e2012-30469-5

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  • DOI: https://doi.org/10.1140/epjd/e2012-30469-5

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