نتایج جستجو برای: delocalization index
تعداد نتایج: 398868 فیلتر نتایج به سال:
We study the eigenvectors of generalized Wigner matrices with subexponential entries and prove that they delocalize at optimal rate overwhelming probability. also high probability delocalization bounds sharp constants. Our proof uses an analysis eigenvector moment flow introduced by Bourgade Yau (2017) [18] to bound logarithmic moments for random small Gaussian components. then extend this cont...
Materials in which charge delocalization and migration can be tuned are critical for electronic applications.
We report a novel "single trench fiber" design for mode area scaling of the fundamental mode while offering effective single mode operation for a compact fiber laser device. This fiber design allows very high suppression of the higher order modes by offering high loss and power delocalization. It has the advantages of low cost and easy fabrication thanks to all solid fiber design, cylindrical s...
Charge transport is dependent on properties such as reorganization energy (λ) and free energy. These quantities are typically estimated applying density functional theory (DFT) to optimized geometries. However, most pigments in photosynthesis conjugated, making delocalization vibrational effects relevant. Here, we calculated energies of 15 molecules relevant using a reliable DFT-based approach....
Femtosecond measurements of the transient dichroism and near-IR time-resolved spectra revealed the ultrafast delocalization of the cationic state in poly(N-vinylcarbazole), leading to carrier photogeneration.
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