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Scientific article
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English

Orbital entanglement and violation of Bell inequalities in mesoscopic conductors

Published inPhysical review letters, vol. 91, no. 15, 157002
Publication date2003
Abstract

We propose a spin-independent scheme to generate and detect two-particle entanglement in a mesoscopic normal-superconductor system. A superconductor, weakly coupled to the normal conductor, generates an orbitally entangled state by injecting pairs of electrons into different leads of the normal conductor. The entanglement is detected via violation of a Bell inequality, formulated in terms of zero-frequency current cross-correlators. It is shown that the Bell inequality can be violated for arbitrary strong dephasing in the normal conductor.

Keywords
  • Mesoscopic systems and quantum hall effect
  • Superconductivity
  • Condensed matter
Citation (ISO format)
SAMUELSSON, Martin Peter, SUKHORUKOV, Eugene, BUTTIKER, Markus. Orbital entanglement and violation of Bell inequalities in mesoscopic conductors. In: Physical review letters, 2003, vol. 91, n° 15, p. 157002. doi: 10.1103/PhysRevLett.91.157002
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ISSN of the journal0031-9007
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