Report
Transport signatures of a Floquet topological transition at the helical edge
| العنوان: | Transport signatures of a Floquet topological transition at the helical edge |
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| المؤلفون: | Fleckenstein, C., Ziani, N. Traverso, Privitera, L., Sassetti, M., Trauzettel, B. |
| المصدر: | Phys. Rev. B 101, 201401 (2020) |
| سنة النشر: | 2019 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | The manipulation of the helical edge states of two-dimensional topological insulators is crucial for the development of technological applications. Recently, an important step forward, namely, the experimental realization of a quantum point contact between helical edges, has been accomplished. We theoretically predict that such a quantum point contact, in the presence of a time periodic applied electric field, is characterized by a topological quantum phase transition in the Floquet spectrum. Moreover, we show that it is possible to detect this dynamical topological quantum phase transition by a bare conductance measurements. Comment: 5 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.101.201401 |
| URL الوصول: | http://arxiv.org/abs/1908.11719 |
| رقم الانضمام: | edsarx.1908.11719 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.101.201401 |
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