تقرير
Long lifetimes of ultra-hot particles in interacting Fermi systems
| العنوان: | Long lifetimes of ultra-hot particles in interacting Fermi systems |
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| المؤلفون: | Bard, M., Protopopov, I. V., Mirlin, A. D. |
| المصدر: | Phys. Rev. B 97, 195147 (2018) |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | The energy dependence of the relaxation rate of hot electrons due to interaction with the Fermi sea is studied. We consider 2D and 3D systems, quasi-1D quantum wires with multiple transverse bands, as well as single-channel 1D wires. Our analysis includes both spinful and spin-polarized setups, with short-range and Coulomb interactions. We show that, quite generally, the relaxation rate is a non-monotonic function of the electron energy and decays as a power-law at high energies. In other words, ultra-hot electrons regain their coherence with increasing energy. Such a behavior was observed in a recent experiment on multi-band quantum wires, J. Reiner et al, Phys. Rev. X {\bf 7}, 021016 (2017). Comment: 22 pages, 13 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.97.195147 |
| URL الوصول: | http://arxiv.org/abs/1802.10429 |
| رقم الأكسشن: | edsarx.1802.10429 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.97.195147 |
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