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Where is the Shot Noise of a Quantum Point Contact?
Frederick Green, Jagdish S. Thakur, Mukunda P. Das
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"…
Quantum Point Contacts and Beyond: New Results on Mesoscopic Conductance and Fluctuations
Mukunda P. Das, Frederick Green, Jagdish S. Thakur
We summarize the main results of a microscopically based kinetic theory, applicable to open quantum point contacts (QPCs) driven up to high fields. The governing role of gauge inva…
Mesoscopic Transport: The Electron-Gas Sum Rules in a Driven Quantum Point Contact
Mukunda P. Das, Jagdish S. Thakur, Frederick Green
The nature of the electron gas is characterized, above all, by its multi-particle correlations. The conserving sum rules for the electron gas have been thoroughly studied for many…