Offres de stage et propositions de thèse
1D Chiral Majorana

Domaines
Condensed matter
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter

Type de stage
Expérimental et théorique
Description
Quantum technology leaders like Microsoft have invested heavily in Majorana Zero Modes (MZMs) for topological qubits, exploiting their nonlocal nature to guard against decoherence. This promising route, however, depends on intricate hybrid devices combining nanowires, quantum dots, and superconducting gates. Such multi-material architectures demand extreme fabrication precision and suffer from a gate count that grows linearly with qubit number, hindering scalability. Moreover, Microsoft’s “Majorana 1” platform hosts static MZMs at nanowire ends, making the braiding operations that reveal non-Abelian statistics particularly challenging. In sharp contrast, our project offers a radically simpler and inherently scalable solution. Our approach harnesses rhombohedral pentalayer graphene—a single, monolithic material—to host both chiral topological superconductivity and the quantum anomalous Hall effect. This unified platform removes the need for complex hybrid integration across disparate materials. Crucially, it realises 1D chiral Majorana modes—“flying” quasiparticles that travel along defined paths—rather than static zero modes. These propagating modes enable real-time control, dynamic manipulation, and braiding of Majoranas.

Contact
Preden Roulleau
Laboratoire : SPEC -
Equipe : GNE
Site Web de l'équipe
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