Regensburg 2016 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 68: Transport: Majorana Fermions

TT 68.5: Vortrag

Donnerstag, 10. März 2016, 11:30–11:45, H19

Topological phase diagram of superconducting carbon nanotubes — •Lars Milz, Magdalena Marganska-Lyzniak, and Milena Grifoni — Institut I - Theoretische Physik Universität Regensburg, Germany

The topological superconducting phase diagram of superconducting carbon nanotubes is discussed. Under the assumption of a short-ranged pairing potential, there are two spin-singlet states: an s-wave and an exotic p + ip-wave that are possible because of the special structure of the honeycomb lattice. The consequences for the possible presence of Majorana edge states in carbon nanotubes are addressed. In particular, regions in the magnetic field-chemical potential plane possibly hosting localized Majorana modes are discussed.