O que (quem) é Single Electron Tunneling - definição
PHYSICS POSTULATE DESCRIBING ALL ELECTRONS/POSITRONS AS ONE TIME-INDEPENDENT ENTITY
One electron universe; Oneelectron universe; One electron; One-electron; Single electron universe; Single-electron universe
Single Electron Tunneling
<electronics> (SET) A New electrical standard for capacitance.
SET devices can be used to construct circuits which process
information by manipulating individual electrons. SET devices
are small, dissipate little power, and can detect exquisitely
small quantities of charge. The small size and low power
dissipation of SET circuits makes them potentially useful for
the Information Technology industry.
(1999-01-06)
Quantum tunnelling
![A working mechanism of a [[resonant tunnelling diode]] device, based on the phenomenon of quantum tunnelling through the potential barriers](https://commons.wikimedia.org/wiki/Special:FilePath/Rtd seq v3.gif?width=200 "A working mechanism of a [[resonant tunnelling diode]] device, based on the phenomenon of quantum tunnelling through the potential barriers")
QUANTUM MECHANICAL PHENOMENON
Tunneling effect; Quantum mechanical tunneling; Tunnel (quantum mechanics); Tunneling Effect; Electron tunneling; Barrier penetration; Barrier tunneling; Quantum tunneling; Quantum Tunneling; Barrier Penetration; Tunneling barrier; Tunnelling barrier; Quantum mechanical tunnelling; Tunneling time; Wave-mechanical tunneling
Quantum tunnelling, also known as tunneling (US) is a quantum mechanical phenomenon whereby a wavefunction can propagate through a potential barrier.
Scanning tunneling microscope
![A large STM setup at the [[London Centre for Nanotechnology]]](https://commons.wikimedia.org/wiki/Special:FilePath/STM at the London Centre for Nanotechnology.jpg?width=200 "A large STM setup at the [[London Centre for Nanotechnology]]")
![A 1986 STM from the collection of [[Musée d'histoire des sciences de la Ville de Genève]]](https://commons.wikimedia.org/wiki/Special:FilePath/Scanning tunneling microscope-MHS 2237-IMG 3819.JPG?width=200 "A 1986 STM from the collection of [[Musée d'histoire des sciences de la Ville de Genève]]")
 250 nm by 250 nm image of one-atom-thick silver islands grown on palladium (111) surface.png?width=200 "One-atom-thick silver islands grown on terraces of the (111) surface of palladium. Image size is 250 nm by 250 nm.")
![A 7 nm long part of a single-walled [[carbon nanotube]].](https://commons.wikimedia.org/wiki/Special:FilePath/Chiraltube.png?width=200 "A 7 nm long part of a single-walled [[carbon nanotube]].")
![Atoms on the surface of a crystal of [[silicon carbide]] (SiC) are arranged in a hexagonal lattice and are 0.3 nm apart.](https://commons.wikimedia.org/wiki/Special:FilePath/Silicium-atomes.png?width=200 "Atoms on the surface of a crystal of [[silicon carbide]] (SiC) are arranged in a hexagonal lattice and are 0.3 nm apart.")
![STM nanomanipulation of PTCDA molecules on [[graphite]] to inscribe the logo of the [[Center for NanoScience]] (CeNS), Munich.](https://commons.wikimedia.org/wiki/Special:FilePath/Cens nanomanipulation3d Trixler.jpg?width=200 "STM nanomanipulation of PTCDA molecules on [[graphite]] to inscribe the logo of the [[Center for NanoScience]] (CeNS), Munich.")
A MICROSCOPE USED FOR LOOKING AT ATOMS.
Electron tunnel microscopy; Scanning tunneling; Scanning Tunneling Microscope; Scanning tunneling microscopy; Scanning tunnelling microscope; Scanning tunnelling microscopy; Microscopy, scanning tunneling; Scanning-tunneling microscope; Scanning Tunneling Microscopy; STM microscope; Josephson tunneling microscope
A scanning tunneling microscope (STM) is a type of microscope used for imaging surfaces at the atomic level. Its development in 1981 earned its inventors, Gerd Binnig and Heinrich Rohrer, then at IBM Zürich, the Nobel Prize in Physics in 1986.
Wikipédia
One-electron universe
The one-electron universe postulate, proposed by theoretical physicist John Wheeler in a telephone call to Richard Feynman in the spring of 1940, is the hypothesis that all electrons and positrons are actually manifestations of a single entity moving backwards and forwards in time. According to Feynman:
I received a telephone call one day at the graduate college at Princeton from Professor Wheeler, in which he said, "Feynman, I know why all electrons have the same charge and the same mass" "Why?" "Because, they are all the same electron!"
A similar "zigzag world line description of pair annihilation" has been independently devised by E. C. G. Stueckelberg at the same time.
