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Scattering approach to counting statistics in quantum pumps
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UNSPECIFIED. (2003) Scattering approach to counting statistics in quantum pumps. PHYSICAL REVIEW B, 68 (15). -. ISSN 1098-0121
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Official URL: http://dx.doi.org/10.1103/PhysRevB.68.155304
Abstract
We consider the Fermi gas in a nonequilibrium state obtained by applying an arbitrary time-dependent potential to the Fermi gas in the ground state. We present a general method that gives the quantum statistics of any single-particle quantity, such as the charge, total energy, or momentum, in this nonequilibrium state. We show that the quantum statistics may be found from the solution of a matrix Riemann-Hilbert problem. We use the method to study how the finite measuring time modifies the distribution of charge transferred through a biased quantum point contact.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Journal or Publication Title: | PHYSICAL REVIEW B |
| Publisher: | AMERICAN PHYSICAL SOC |
| ISSN: | 1098-0121 |
| Date: | 15 October 2003 |
| Volume: | 68 |
| Number: | 15 |
| Number of Pages: | 9 |
| Page Range: | - |
| Identification Number: | 10.1103/PhysRevB.68.155304 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/9145 |
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