Single-Particle Excitations Generated by Voltage Pulses
Abstract
We analyze properties of excitations due to voltage pulses applied to a 1D noninteracting electron gas, assuming that the integral of the voltage over time is equal to the unit of flux. We show that the average charge transfer due to such pulses does not depend on the pulse shape. For pulses with a Lorentzian profile, we prove the single-particle nature of the electron and the hole excitations.
- Publication:
-
Advances in Theoretical Physics: Landau Memorial Conference
- Pub Date:
- May 2009
- DOI:
- 10.1063/1.3149482
- arXiv:
- arXiv:1110.0441
- Bibcode:
- 2009AIPC.1134..113H
- Keywords:
-
- 73.20.-r;
- 84.37.+q;
- 03.65.Pm;
- 02.30.Rz;
- Electron states at surfaces and interfaces;
- Measurements in electric variables;
- Relativistic wave equations;
- Integral equations;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 7 pages, 2 figures