تقرير
Dynamical delocalization of Majorana edge states by sweeping across a quantum critical point
| العنوان: | Dynamical delocalization of Majorana edge states by sweeping across a quantum critical point |
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| المؤلفون: | Bermudez, A., Amico, L., Martin-Delgado, M. A. |
| المصدر: | New J. Phys.12:055014, 2010 |
| سنة النشر: | 2009 |
| المجموعة: | Condensed Matter High Energy Physics - Theory Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, High Energy Physics - Theory, Quantum Physics |
| الوصف: | We study the adiabatic dynamics of Majorana fermions across a quantum phase transition. We show that the Kibble-Zurek scaling, which describes the density of bulk defects produced during the critical point crossing, is not valid for edge Majorana fermions. Therefore, the dynamics governing an edge state quench is nonuniversal and depends on the topological features of the system. Besides, we show that the localization of Majorana fermions is a necessary ingredient to guaranty robustness against defect production. Comment: Submitted to the Special Issue on "Dynamics and Thermalization in Isolated Quantum Many-Body Systems" in New Journal of Physics. Editors:M. Cazalilla, M. Rigol. New references and some typos corrected |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/12/5/055014 |
| URL الوصول: | http://arxiv.org/abs/0907.3134 |
| رقم الأكسشن: | edsarx.0907.3134 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/12/5/055014 |
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