6 citations · 21 across the 6 of their papers we have counts for
6 papers
Spin-asymmetric graphene nanoribbons in graphane on silicon dioxide
M. Ijäs, P. Havu, A. Harju +1
Hydrogenated graphene, graphane, is studied on oxygen-terminated silicon dioxide substrate using ab initio calculations. A structure with hydrogenation only on one side of the grap…
Gate-controlled current switch in graphene
Kimmo Sääskilahti, Ari Harju, Pirjo Pasanen
We study numerically cross conductances in a four-terminal all-graphene setup. We show that far away from the Dirac point current flows along zigzag directions, giving the possibil…
M-Theory Five-brane Wrapped on Curves for Exceptional Groups
Elena Caceres, Pirjo Pasanen
We study the M-theory five-brane wrapped around the Seiberg-Witten curves for pure classical and exceptional groups given by an integrable system. Generically, the D4-branes arise…
Symmetries and Observables for BF-theories in Superspace
Pirjo Pasanen
The supersymmetric version of a topological quantum field theory describing flat connections, the super BF-theory, is studied in the superspace formalism. A set of observables rela…
Topological Sigma-model, Hamiltonian Dynamics and Loop Space Lefschetz Number
Antti J. Niemi, Pirjo Pasanen
We use path integral methods and topological quantum field theory techniques to investigate a generic classical Hamiltonian system. In particular, we show that Floer's instanton eq…
On the Infrared Limit of Two Dimensional QCD
A. J. Niemi, P. Pasanen
We study the infrared limit of two dimensional QCD, with massless dynamical Dirac fermions that are in the fundamental representation of the gauge group. We find that the theory re…