Publications (55)
From fractional solitons to Majorana fermions in a paradigmatic model of topological superconductivity
N. Traverso Ziani, C. Fleckenstein, L. Vigliotti +2
Majorana bound states are interesting candidates for applications in topological quantum computation. Low energy models allowing to grasp their properties are hence conceptually im…
Shot Noise in Lithographically Patterned Graphene Nanoribbons
Z. B. Tan, A. Puska, T. Nieminen +5
We have investigated shot noise and conductance of multi-terminal graphene nanoribbon devices at temperatures down to 50 mK. Away from the charge neutrality point, we find a Fano f…
Signatures of interaction-induced helical gaps in nanowire quantum point contacts
S. Heedt, N. Traverso Ziani, F. Crépin +6
Spin-momentum locking in a semiconductor device with strong spin-orbit coupling (SOC) is a fundamental goal of nanoscale spintronics and an important prerequisite for the formation…
Single valley Dirac fermions in zero-gap HgTe quantum wells
B. Büttner, C. X. Liu, G. Tkachov +8
Dirac fermions have been studied intensively in condensed matter physics in recent years. Many theoretical predictions critically depend on the number of valleys where the Dirac fe…
Shot Noise Detection on a Carbon Nanotube Quantum Dot
E. Onac, F. Balestro, B. Trauzettel +2
An on-chip detection scheme for high frequency signals is used to detect noise generated by a quantum dot formed in a single wall carbon nanotube. The noise detection is based on p…
Decaying spectral oscillations in a Majorana wire with finite coherence length
C. Fleckenstein, F. DomÃnguez, N. Traverso Ziani +1
Motivated by recent experiments, we investigate the excitation energy of a proximitized Rashba wire in the presence of a position dependent pairing. In particular, we focus on the…