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Generating spin-entangled electron pairs in normal conductors using voltage pulses

A. V. Lebedev, G. B. Lesovik, G. Blatter

cond-mat.mes-hallarXiv:cond-mat/0504583

Abstract

We suggest an operating scheme for the deliberate generation of spin-entangled electron pairs in a normal-metal mesoscopic structure with fork geometry. Voltage pulses with associated Faraday flux equal to one flux unit Φ0=hc/e drive individual singlet-pairs of electrons towards the beam splitter. The spin-entangled pair is created through a post-selection in the two branches of the fork. We analyze the appearance of entanglement in a Bell inequality test formulated in terms of the number of transmitted electrons with a given spin polarization.

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