Entanglement between static and flying qubits in quantum wires

2005/09/01 by J. H. Jefferson, A. Ramšak, A. Ramsak +2 · 4 citations
Computer Science · Physics and Astronomy · #Condensed matter physics #Coulomb #Electron #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum entanglement #Quantum mechanics #Qubit #Spin (aerodynamics) #W state #cond-mat.mes-hall #cond-mat.str-el #quant-ph

paper · pdf · doi:10.1209/epl/i2005-10584-1

published as Europhys. Lett. 74, 764 (2006)

arxiv created 2005/09/01 · openalex publication_date 2006/04/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A weakly bound electron in a semiconductor quantum wire is shown to become entangled with an itinerant electron via the Coulomb interaction. The degree of entanglement and its variation with energy of the injected electron, may be tuned by choice of spin and initial momentum. Full entanglement is achieved close to energies where there are spin-dependent resonances. Possible realisations of related device structures are discussed.

Citations

• Spin-dependent resonances in the conduction edge of quantum wires
• Magnetic moment formation in quantum point contacts
• Entanglement of Formation of an Arbitrary State of Two Qubits
• Conductance anomalies in quantum wires
• Double quantum dot turnstile as an electron spin entangler
• Zeeman Energy and Spin Relaxation in a One-Electron Quantum Dot
• Lower Bound for Electron Spin Entanglement from Beam Splitter Current Correlations

Cited by

• Entanglement of electron pairs extracted from a many-body system
• Generation of Einstein-Podolsky-Rosen pairs and interconversion of static and flying electron spin qubits
• Coherently manipulating flying qubits in a quantum wire with a magnetic impurity
• Quantum entanglement of space domains occupied by interacting electrons