Coherently manipulating flying qubits in a quantum wire with a magnetic impurity

2010/03/06 by Lan Zhou, Jing Lu, Jianghua Lu
Computer Science · Physics and Astronomy · #Condensed matter physics #Impurity #Orientation (vector space) #Phase qubit #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Qubit #Scattering #Semiconductor Quantum Structures and Devices #Spin (aerodynamics) #quant-ph

paper · pdf · doi:10.1140/epjb/e2010-00088-3

published as Eur. Phys. J. D 74, 373 (2010) · 6 pages, 5 figures

openalex publication_date 2010/03/06 · arxiv created 2010/05/28 · arxiv updated 2015/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

e study the effect of a magnetic impurity with spin-half on a single propagating electron in a one-dimensional model system via the tight-binding approach. Due to the spin-dependent interaction, the scattering channel for the flying qubit is split, and its transmission spectrum is obtained. It is found that, the spin orientation of the impurity plays the role as a spin state filter for a flying qubit.

Citations

• Entanglement between static and flying qubits in quantum wires
• Controlling quasibound states in a one-dimensional continuum through an electromagnetically-induced-transparency mechanism
• Effects of Configuration Interaction on Intensities and Phase Shifts