Heidelberg 2015 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 65: Heavy Ion Collisions and QCD Phases 9

HK 65.1: Vortrag

Donnerstag, 26. März 2015, 17:00–17:15, T/SR14

Graphene as a lattice field theory — •Dominik Smith¹, Lorenz von Smekal^1,2, and Michael Körner¹ — ¹Technische Universität Darmstadt, Deutschland — ²Justus Liebig Universität Gießen, Deutschland

We report on the status of ongoing ab-initio simulations of the electronic properties of mono-layer graphene within the tight-binding description. Hereby we employ standard methods of lattice field theory, similar to those used in simulations of Quantumchromodynamics. We present results concerning the semimetal-insulator phase-transition, which is analogous to chiral symmetry-breaking in strongly interacting field theories, and concerning the topological neck-disrupting Lifshitz transition, which occurs at finite electron number-density.

Gefördert von der DFG im Rahmen der Projekte SFB 634.