We propose an experiment to test Bell's inequality violation in condensed-matter physics. We show how to generate, manipulate and detect entangled states using ballistic electrons in Coulomb-coupled semiconductor quantum wires. Due to its simplicity (only five gates are required to prepare entangled states and to test Bell's inequality), the proposed semiconductor-based scheme can be implemented with currently available technology. Moreover, its basic ingredients may play a role towards large-scale quantum-information processing in solid-state devices.
@article{arxiv.quant-ph/0009026,
title = {Testing Bell's Inequality with Ballistic Electrons in Semiconductors},
author = {Radu Ionicioiu and Paolo Zanardi and Fausto Rossi},
journal= {arXiv preprint arXiv:quant-ph/0009026},
year = {2009}
}
Comments
4 pages, RevTeX4, 4 figures, uses epsf, latexsym, times; Bell's inequality generalized to Bell-CHSH inequality; small notation change to conform to PRA style; to be published in PRA as a Rapid Communication