تقرير
Asymmetry and nonlinearity of current-bias characteristics in superfluid-normal state junctions of weakly-interacting Bose gases
| العنوان: | Asymmetry and nonlinearity of current-bias characteristics in superfluid-normal state junctions of weakly-interacting Bose gases |
|---|---|
| المؤلفون: | Uchino, Shun |
| المصدر: | Phys. Rev. A 106, L011303 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We uncover current-bias characteristics of superfluid-normal state junctions with weakly-interacting Bose gases. It is shown that in the presence of a chemical potential bias the characteristics can strongly be asymmetric for origin. The salient feature that is absent in the fermionic counterpart arises from a tunneling process associated with a condensate and a bosonic Andreev reflection process. It turns out that such processes are intrinsically nonlinear and therefore do not obey Ohm's law even at a low bias. In addition, the remaining processes are found to obey Ohm's law and become dominant for transport driven by a temperature bias. Comment: 5 pages, 1 figure, 7 pages supplementary |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.106.L011303 |
| الوصول الحر: | http://arxiv.org/abs/2203.06927Test |
| رقم الانضمام: | edsarx.2203.06927 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.106.L011303 |
|---|