Entanglement of magnetic impurities through electron scattering in an electric field
arXiv:1507.03120 · doi:10.1007/s11128-015-1062-5
Abstract
We show that the entanglement between two distant magnetic impurities, generated via electron scattering, can be easily modulated by controlling the magnitude of an applied external electric field. We assume that the two magnetic impurities are fixed and located on an one-dimensional quantum wire. A ballistic electron moving through the wire is scattered off by both impurities, so the electron spin can be seen as a mediator between the spins of the impurities. Heisenberg operators are used to describe the interactions between electron and impurities spins. We use a wave guide formalism to model the ballistic electron wave-function. Entanglement control is shown to be possible for three different protocols of entanglement detection. The effect of detection protocols on the entanglement extraction is discussed.
arXiv comment28 pages, 6 figures, accepted to be published in Quantum Information Processing
References in corpus (33)
- The electronic properties of graphene
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- Spin qubits in graphene quantum dots
- An On-Demand Coherent Single Electron Source
- A photonic quantum information interface
- Electrons surfing on a sound wave as a platform for quantum optics with flying electrons
- On-demand single-electron transfer between distant quantum dots
- Experimental Evidence for Resonant-Tunneling in a Luttinger-Liquid
- Theory of control of spin/photon interface for quantum networks
- Electrical control of a solid-state flying qubit
- Surface plasmons in a metal nanowire coupled to colloidal quantum dots: Scattering properties and quantum entanglement
- Entanglement probe of two-impurity Kondo physics in a spin chain
- An order parameter for impurity systems at quantum criticality
- Spin transport in interacting quantum wires and carbon nanotubes
- Quantum Entanglement in the Two Impurity Kondo Model
- Entanglement of Two Impurities through Electron Scattering
- Entanglement Controlled Single-Electron Transmittivity
- Resonant Scattering Can Enhance the Degree of Entanglement
- Entanglement between static and flying qubits in a semiconducting carbon nanotube
- Quasideterministic realization of a universal quantum gate in a single scattering process
- All-Electrical Quantum Computation with Mobile Spin Qubits
- Electron Fabry-Perot interferometer with two entangled magnetic impurities
- Implementing quantum gates through scattering between a static and a flying qubit
- Graphene Enabled Low-Control Quantum Gates between Static and Mobile Spins
- Spin decoherence in graphene quantum dots due to hyperfine interaction
- Entanglement Generation by Qubit Scattering in Three Dimensions
- Teleportation between distant qudits via scattering of mobile qubits
- Transmission properties of the one-dimensional array of delta potentials
- Quantum correlations in nanostructured two-impurity Kondo systems
- Probing Quantitatively Two-electron Entanglement with a Spintronic Quantum Eraser
- Impurity entanglement through electron scattering in a magnetic field
- Recurrence in resonant transmission of one-dimensional array of delta potentials