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arXiv:cond-mat/0505049 · Applied Physics Letters

Tunable entanglement generation for mobile-electron spin qubits

A. I. Signal, Ulrich Zülicke

Published Aug 29, 2005• 17 citations
arXivHTMLPDF

Abstract

Recent studies have shown that linear electron optics can be used to generate entangled two-particle states from nonentangled ones if additional measurements of charge or parity are performed. We have investigated such nondeterministic entanglement production in electronic versions of the Mach-Zehnder interferometer, where spin-dependent interference occurs due to the presence of electric-field tunable Rashba spin splitting. Adjustment of the spin-precession length turns out to switch the entangler on and off, as well as control the detailed form of entangled output states.

DOI
10.1063/1.2041821

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