نتایج جستجو برای: delocalization index

تعداد نتایج: 398868  

Journal: :Comptes Rendus Mathematique 2016

Journal: :Advances in Mathematics 2022

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...

Journal: :CrystEngComm 2021

Materials in which charge delocalization and migration can be tuned are critical for electronic applications.

Journal: :Optics express 2014
D Jain Y Jung M Nunez-Velazquez J K Sahu

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...

Journal: :Chemical Physics Letters 2023

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....

Journal: :Physical chemistry chemical physics : PCCP 2010
Tetsuro Katayama Yukihide Ishibashi Yuji Morii Christian Ley Johanna Brazard Fabien Lacombat Pascal Plaza Monique M Martin Hiroshi Miyasaka

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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