Berlin 2024 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 18: Superconductivity: Poster

TT 18.12: Poster

Montag, 18. März 2024, 15:00–18:00, Poster C

Controlling Majorana modes in magnetic adatom chains. — •Ioannis Ioannidis — Institute for Theoretical Physics, Hamburg, Germany

Controlling impurity spins in superconductors led to the observation of promising signatures of Majorana zero modes (MZMs) but manipulating these states for quantum information processing remains an open challenge. We propose using an ancillary Yu-Shiba-Rusinov state to manipulate and fuse MZMs in topological superconductors. We demonstrate that its positioning, spin orientation, and coupling energy facilitate the efficient control of MZMs in a variety of implementations. Our approach relies on well-established techniques, such as scanning-tunneling microscopy and electron-spin resonance, opening the path towards fault-tolerant quantum computation with MZMs in adatom-superconductor systems.

Keywords: Majorana; Braiding; YSR; Fusion; Topological