Editing Shot noise (section)

====Examples====
* [[Tunnel junction]] is characterized by low transmission in all transport channels, therefore the electron flow is Poissonian, and the Fano factor equals one.
* [[Quantum point contact]] is characterized by an ideal transmission in all open channels, therefore it does not produce any noise, and the Fano factor equals zero. The exception is the step between plateaus, when one of the channels is partially open and produces noise.
* A metallic diffusive wire has a Fano factor of 1/3 regardless of the geometry and the details of the material.<ref>{{cite journal|last=Beenakker|first=C.W.J.|author2=Büttiker, M.|year=1992|title=Suppression of shot noise in metallic diffusive conductors|journal=[[Physical Review B]]|volume=46|issue=3|pages=1889–1892|bibcode = 1992PhRvB..46.1889B |doi = 10.1103/PhysRevB.46.1889 |pmid=10003850|hdl=1887/1116|url=https://openaccess.leidenuniv.nl/bitstream/handle/1887/1116/172_088.pdf?sequence=1|hdl-access=free}}</ref>
* In [[2DEG]] exhibiting [[fractional quantum Hall effect]] electric current is carried by [[quasiparticles]] moving at the sample edge whose charge is a rational fraction of the [[electron charge]]. The first direct measurement of their charge was through the shot noise in the current.<ref>
{{cite journal 
 |author=V.J. Goldman, B. Su
 |year=1995
 |title=Resonant Tunneling in the Quantum Hall Regime: Measurement of Fractional Charge
 |journal=[[Science (journal)|Science]]
 |volume=267 |pages=1010–1012
 |doi=10.1126/science.267.5200.1010
|bibcode = 1995Sci...267.1010G
 |issue=5200
 |pmid=17811442|s2cid=45371551
 }} See also [http://quantum.physics.sunysb.edu/index.html Description on the researcher's website] {{webarchive|url=https://web.archive.org/web/20080828090752/http://quantum.physics.sunysb.edu/index.html |date=2008-08-28 }}.</ref>