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.
| Original language | English |
|---|---|
| Article number | 104516 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 80 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2009 Sep 29 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Quantum coherence of electrons field-emitted from a superconductor : Correlations and entanglement. / Yuasa, Kazuya.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 80, No. 10, 104516, 29.09.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantum coherence of electrons field-emitted from a superconductor
T2 - Correlations and entanglement
AU - Yuasa, Kazuya
PY - 2009/9/29
Y1 - 2009/9/29
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=70349918350&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349918350&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.80.104516
DO - 10.1103/PhysRevB.80.104516
M3 - Article
AN - SCOPUS:70349918350
VL - 80
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 10
M1 - 104516
ER -