Testing Bell's inequality with ballistic electrons in semiconductors
Abstract
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.
- Publication:
-
Physical Review A
- Pub Date:
- May 2001
- DOI:
- 10.1103/PhysRevA.63.050101
- arXiv:
- arXiv:quant-ph/0009026
- Bibcode:
- 2001PhRvA..63e0101I
- Keywords:
-
- 03.65.Ta;
- 03.67.Lx;
- 85.35.Be;
- 73.23.Ad;
- Foundations of quantum mechanics;
- measurement theory;
- Quantum computation;
- Quantum well devices;
- Ballistic transport;
- Quantum Physics;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 4 pages, RevTeX4, 4 figures, uses epsf, latexsym, times