Testing Bell's Inequality with Ballistic Electrons in Semiconductors

Details Testing Bell's Inequality with Ballistic Electrons in Semiconductors Testing Bell's Inequality with Ballistic Electrons in Semiconductors

2000-09-07

arxiv.org/abs/quant-ph/0009026v3

Phys. Rev. A 63, 050101(R) (2001)

Physics

Quantum Physics

4 pages, RevTeX4, 4 figures, uses epsf, latexsym, times; Bell's inequality generalized to Bell-CHSH inequality; small notation

Scientific paper

10.1103/PhysRevA.63.050101

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.

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