Where is the shot noise of a quantum point contact?
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Green, Frederick; Thakur, Jagdish S; Das, Mukunda P
Description
Reznikov et al. [Phys. Rev. Lett. 75, 3340 (1995)] have presented definitive observations of nonequilibrium noise in a quantum point contact. Especially puzzling is the “anomalous” peak structure of the excess noise measured at constant current; to date it remains unexplained. We show that their experiment directly reveals the deep link between conservation principles in the electron gas and its low-dimensional, mesoscopic behavior. The keys to that connection are gauge invariance and the...[Show more]
Collections | ANU Research Publications |
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Date published: | 2004-04-16 |
Type: | Journal article |
URI: | http://hdl.handle.net/10440/973 http://digitalcollections.anu.edu.au/handle/10440/973 |
Source: | Physical Review Letters |
DOI: | 10.1103/PhysRevLett.92.156804 |
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Green_WhereIs2004.pdf | 123.93 kB | Adobe PDF |
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