تقرير
Josephson effect in excitonic chiral double layers
| العنوان: | Josephson effect in excitonic chiral double layers |
|---|---|
| المؤلفون: | Ziegler, Klaus |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | Considering s-wave pairing in an electron-hole double layer of two chiral metals, we study the Josephson effect generated by a domain wall. The latter, which is caused by a jump of the order parameter phase, creates two independent evanescent zero-energy modes at an exceptional point. A unique solution is found by coupling the quasiparticle currents to the supercurrents via the continuity equation. This leads to a superposition of the zero-energy modes, where the relative phases of the coefficients are linked to the direction of the macroscopic supercurrents. Assuming a toroidal geometry, the effective Josephson current winds around the domain walls. Such a system can be realized as the surface of a ring-shaped topological insulator. Comment: 6 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2212.11161 |
| رقم الأكسشن: | edsarx.2212.11161 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |