Majorana modes in a triple-terminal Josephson junction with embedded parallel-coupled double quantum dots

التفاصيل البيبلوغرافية
العنوان: Majorana modes in a triple-terminal Josephson junction with embedded parallel-coupled double quantum dots
المؤلفون: Yi, Guang-Yu, Wang, Xiao-Qi, Gao, Zhen, Wu, Hai-Na, Gong, Wei-Jiang
سنة النشر: 2015
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics
الوصف: We investigate the Josephson effect in one triple-terminal junction with embedded parallel-coupled double quantum dots. It is found that the inter-superconductor supercurrent has opportunities to oscillate in $4\pi$ period, with the adjustment of the phase differences among the superconductors. What is notable is that such a result is robust and independent of fermion parities, intradot Coulomb strength, and the dot-superconductor coupling manner. By introducing the concept of spinful many-particle Majorana modes, we present the analytical definition of the Majorana operator via superposing electron and hole operators. It can be believed that this work provide a simple but feasible proposal for the realization of Majorana modes in a nonmagnetic system.
Comment: 4 pages, 3 figures
نوع الوثيقة: Working Paper
DOI: 10.1016/j.physe.2015.12.019
URL الوصول: http://arxiv.org/abs/1507.07164
رقم الأكسشن: edsarx.1507.07164
قاعدة البيانات: arXiv
الوصف
DOI:10.1016/j.physe.2015.12.019