Itamar Sela and Doron Cohen 2006 J. Phys. A: Math. Gen. 39 3575 doi:10.1088/0305-4470/39/14/006
Operating a quantum pump in a closed circuit
Itamar Sela and Doron Cohen
Show affiliationsDuring an adiabatic pumping cycle a conventional two-barrier quantum device takes an electron from the left lead and ejects it to the right lead. Hence, the pumped charge per cycle is naively expected to be Q ≤ e. This zero-order adiabatic point of view is in fact misleading. For a closed device we can get Q > e and even Q 
e. In this paper, a detailed analysis of the quantum pump operation is presented. Using the Kubo formula for the geometric conductance, and applying the Dirac chains picture, we derive practical estimates for Q.
- PACS
- MSC
-
15A18 Eigenvalues, singular values, and eigenvectors
- Subjects
- Dates
-
Issue 14 (7 April 2006)
Received 21 December 2005, in final form 6 February 2006
Published 22 March 2006
-
Operating a quantum pump in a closed circuit
Itamar Sela and Doron Cohen 2006 J. Phys. A: Math. Gen. 39 3575
-
The Young Intercloud Population. I. Distances and Ages
Serge Demers and Paolo Battinelli 1998 The Astronomical Journal 115 154
-
Effect of iron additions on intergranular cohesion in chromium
T Ossowski et al 2009 J. Phys.: Condens. Matter 21 485002
-
Electrochemical deposition of metals onto silicon
G Oskam et al 1998 J. Phys. D: Appl. Phys. 31 1927
-
Location of the Optical Reverse Shock in the Cassiopeia A Supernova Remnant
Jon A. Morse et al. 2004 ApJ 614 727
-
Phonon emission by photoexcited carriers in InGaN/GaN multiple quantum wells
A V Akimov et al 2002 J. Phys.: Condens. Matter 14 3445
-
Deformation of orthosymplectic Lie superalgebra osp(1|4)
Enrico Celeghini and Petr P Kulish 2004 J. Phys. A: Math. Gen. 37 L211
-
A New Brown Dwarf Desert? A Scarcity of Wide Ultracool Binaries
Peter R. Allen et al. 2007 The Astronomical Journal 133 971
-
Two-dimensional Radiation-Hydrodynamic Model for Limit-Cycle Oscillations of Luminous Accretion Disks
Ken Ohsuga 2006 ApJ 640 923
-
Radiative Transfer Effect on Ultraviolet Pumping of the 21 cm Line in the High-Redshift Universe
Leonid Chuzhoy and Zheng Zheng 2007 ApJ 670 912
Related review articles
What's this?- Integrable structure of box–ball systems: crystal, Bethe ansatz, ultradiscretization and tropical geometry
- The effective temperature
- Unconventional phase transitions in a constrained single polymer chain