Robust poor man's Majorana zero modes using Yu-Shiba-Rusinov states

التفاصيل البيبلوغرافية
العنوان: Robust poor man's Majorana zero modes using Yu-Shiba-Rusinov states
المؤلفون: Zatelli, Francesco, van Driel, David, Xu, Di, Wang, Guanzhong, Liu, Chun-Xiao, Bordin, Alberto, Roovers, Bart, Mazur, Grzegorz P., van Loo, Nick, Wolff, Jan Cornelis, Bozkurt, A. Mert, Badawy, Ghada, Gazibegovic, Sasa, Bakkers, Erik P. A. M., Wimmer, Michael, Kouwenhoven, Leo P., Dvir, Tom
سنة النشر: 2023
المجموعة: Condensed Matter
Quantum Physics
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Superconductivity, Quantum Physics
الوصف: The recent realization of a two-site Kitaev chain featuring "poor man's Majorana" states demonstrates a path forward in the field of topological superconductivity. Harnessing the potential of these states for quantum information processing, however, requires increasing their robustness to external perturbations. Here, we form a two-site Kitaev chain using proximitized quantum dots hosting Yu-Shiba-Rusinov states. The strong hybridization between such states and the superconductor enables the creation of poor man's Majorana states with a gap larger than $70 \mathrm{~\mu eV}$. It also greatly reduces the charge dispersion compared to Kitaev chains made with non-proximitized quantum dots. The large gap and reduced sensitivity to charge fluctuations will benefit qubit manipulation and demonstration of non-abelian physics using poor man's Majorana states.
Comment: 45 pages, 14 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2311.03193
رقم الأكسشن: edsarx.2311.03193
قاعدة البيانات: arXiv