Quantum Coherence of Electrons Field-Emitted from a Superconductor: Correlations and Entanglement
Superconductivity
2009-09-30 v3 Quantum Physics
Abstract
The correlations of the electrons field-emitted from a superconductor are fully analyzed, both in space and time. It is proposed that a coincidence experiment would reveal a positive correlation between the electrons emitted in opposite directions. The electrons can be entangled and can even violate Bell's inequality. The crucial role played by Andreev's process is scrutinized, analytical formulas are derived for the correlations, and the physics behind the phenomenon is clarified.
Keywords
Cite
@article{arxiv.0906.4042,
title = {Quantum Coherence of Electrons Field-Emitted from a Superconductor: Correlations and Entanglement},
author = {Kazuya Yuasa},
journal= {arXiv preprint arXiv:0906.4042},
year = {2009}
}
Comments
21 pages, 9 figures, typos corrected