76 citations · 617 across the 41 of their papers we have counts for
5 papers · 1 filter
Directional scrambling of quantum information in helical multiferroics
M. Sekania, M. Melz, N. Sedlmayr +2
Local excitations as carriers of quantum information spread out in the system in ways governed by the underlying interaction and symmetry. Understanding this phenomenon, also calle…
Dynamical quantum phase transitions in a mesoscopic superconducting system
Kacper Wrześniewski, Ireneusz Weymann, Nicholas Sedlmayr +1
We inspect signatures of dynamical quantum phase transitions driven by two types of quenches acting on a correlated quantum dot embedded between superconducting and metallic reserv…
Instability of Majorana states in Shiba chains due to leakage into a topological substrate
Nicholas Sedlmayr, Cristina Bena
We revisit the problem of Majorana states in chains of scalar impurities deposited on a superconductor with a mixed s-wave and p-wave pairing. We also study the formation of Majora…
Unconventional topological transitions in a self-organized magnetic ladder
Maciej M. Maśka, Nicholas Sedlmayr, Aksel Kobiałka +1
It is commonly assumed that topological phase transitions in topological superconductors are accompanied by a closing of the topological gap or a change of the symmetry of the syst…
Analytical and semianalytical tools to determine the topological character of Shiba chains
Nicholas Sedlmayr, Vardan Kaladzhyan, Cristina Bena
We introduce three new analytical and semi-analytical tools that allow one to determine the topological character of impurity Shiba chains. The analytical methods are based on calc…