Eur. Phys. J. B (2014) 87: 258
https://doi.org/10.1140/epjb/e2014-50610-6

Regular Article

Particle transport in graphene nanoribbon driven by ultrashort pulses

¹ Turin Polytechnic University in Tashkent, 17. Niyazov Str., 100095 Tashkent, Uzbekistan
² Institut für Theoretische Physik, Heinrich-Heine-Universität, 40225 Düsseldorf, Germany

^a e-mail: egger@thphy.uni-duesseldorf.de

Received: 8 September 2014
Received in final form: 1 October 2014
Published online: 3 November 2014

Abstract

We study charge transport in a graphene zigzag nanoribbon driven by an external time-periodic kicking potential. Using the exact solution of the time-dependent Dirac equation with a delta-kick potential acting in each period, we study the time evolution of the population transfer probability and the time-dependent optical conductivity. By variation of the kicking parameters, the conductivity becomes widely tunable.