| Issue |
EPL
Volume 77, Number 6, March 2007
|
|
|---|---|---|
| Article Number | 67002 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/77/67002 | |
| Published online | 02 March 2007 | |
Theory of one-dimensional double-barrier quantum pump in two-frequency signal regime
Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences - Novosibirsk, 630090 Russia
Corresponding authors: mahmood@isp.nsc.ru entin@isp.nsc.ru
Received:
8
December
2006
Accepted:
2
February
2007
A one-dimensional quantum pump with oscillating double 
-like barriers/wells is studied. We assume that the oscillations contain two frequencies ω and 
. The alternating signal leads to the direct current across the structure even in a symmetric system. The properties of this quantum pump are studied in a wide range of the system parameters.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 73.50.Pz – Photoconduction and photovoltaic effects / 85.35.Be – Quantum well devices (quantum dots, quantum wires, etc.)
© Europhysics Letters Association, 2007
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