Impact of higher-order coherences on the carrier dynamics in Landau-quantized graphene
Paper i proceeding, 2015

We investigate the carrier dynamics in Landau-quantized graphene within the density matrix formalism. In particular, we focus on the carrier-light interaction addressing the impact of higher-order polarizations beyond the optical selection rules. We find that these terms are in general negligible, however, there are regimes, where they even become crucial for the carrier dynamics. Our calculations show that for short excitation pulses, very small Landau level broadenings, and certain configurations of magnetic field strength, Fermi energy, and excitation energy, higher-order polarizations need to be taken into account.

carrier-light interaction

higher-order polarizations

density matrix theory

Landau-quantized graphene

carrier dynamics

Författare

Florian Wendler

Chalmers, Teknisk fysik, Kondenserade materiens teori

Ermin Malic

Chalmers, Teknisk fysik, Kondenserade materiens teori

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN) 1996756X (eISSN)

Vol. 9585 95850D- 95850D

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1117/12.2186880

ISBN

978-1-62841-751-7

Mer information

Skapat

2017-10-07