Effect of Static Disorder in an Electron Fabry-Perot Interferometer with Two Quantum Scattering Centers

Abstract

In a recent paper -- F. Ciccarello \emph{et al.}, New J. Phys. \textbf{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.

4 pages, 5 figures

References in corpus (5)

• Noise of Entangled Electrons: Bunching and Antibunching
• Entanglement of Two Impurities through Electron Scattering
• Electrical current noise of a beam splitter as a test of spin-entanglement
• Entanglement Controlled Single-Electron Transmittivity
• Counting statistics for entangled electrons

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• Efficient Generation of a Maximally Entangled State by Repeated On- and Off-Resonant Scattering of Ancilla Qubits
• Entanglement Generation by Qubit Scattering in Three Dimensions
• Physical model for the generation of ideal resources in multipartite quantum networking
• Teleportation between distant qudits via scattering of mobile qubits
• Extraction of an Entanglement by Repetition of the Resonant Transmission of an Ancilla Qubit
• Rising time of entanglement between scattering spins
• Entanglement Generation by a Three-Dimensional Qubit Scattering: Concurrence vs. Path (In)Distinguishability