Results 41 to 50 of about 1,282,961 (279)

Plasmonic Jackiw-Rebbi Modes in Graphene Waveguide Arrays

open access: yesApplied Sciences, 2019
We investigate the topological bound modes of surface plasmon polaritons (SPPs) in a graphene pair waveguide array. The arrays are with uniform inter-layer and intra-layer spacings but the chemical potential of two graphene in each pair are different ...
Chunyan Xu   +5 more
doaj   +1 more source

Challenging the Lieb-Oxford Bound in a systematic way

open access: yes, 2015
The Lieb-Oxford bound, a nontrivial inequality for the indirect part of the many-body Coulomb repulsion in an electronic system, plays an important role in the construction of approximations in density functional theory.
Gori-Giorgi, Paola   +2 more
core   +1 more source

Adaptive-Adaptive Robust (A2R) Control for Uncertain Mechanical Systems: Rendering $\beta$ -Ultimate Boundedness

open access: yesIEEE Access, 2019
A novel control scheme, namely adaptive-adaptive robust (A2R) control is proposed for motion control of mechanical systems. The system contains uncertainty which is bounded while the bound may be unknown. Two designs of robust controls are proposed, with
Qinqin Sun   +3 more
doaj   +1 more source

A Note on the Minimum Number of Edges in Hypergraphs with Property O

open access: yes, 2019
An oriented $k$-uniform hypergraph is said to have Property O if for every linear order of the vertex set, there is some edge oriented consistently with the linear order.
Kronenberg, Gal   +4 more
core   +1 more source

Phonon bottleneck in GaAs/AlxGa1−xAs quantum dots

open access: yesAIP Advances, 2015
We report low-temperature photoluminescence measurements on highly-uniform GaAs/AlxGa1−xAs quantum dots grown by droplet epitaxy. Recombination between confined electrons and holes bound to carbon acceptors in the dots allow us to determine the energies ...
Y. C. Chang   +4 more
doaj   +1 more source

The Largest Laplacian and Signless Laplacian H-Eigenvalues of a Uniform Hypergraph [PDF]

open access: yes, 2013
In this paper, we show that the largest Laplacian H-eigenvalue of a $k$-uniform nontrivial hypergraph is strictly larger than the maximum degree when $k$ is even. A tight lower bound for this eigenvalue is given.
Hu, Shenglong, Qi, Liqun, Xie, Jinshan
core  

Uniform bounds for Weil–Petersson curvatures

open access: yesProceedings of the London Mathematical Society, 2018
We find bounds for Weil-Petersson holomorphic sectional curvature, and the Weil-Petersson curvature operator in several regimes, that do not depend on the topology of the underlying surface. Among other results, we show that the minimal (most negative) eigenvalue of the curvature operator at any point in the Teichmüller space $\Teich(S_g)$ of a closed ...
Wolf, Michael, Wu, Yunhui
openaire   +4 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Uniform descriptions of pseudospin symmetries in bound and resonant states

open access: yesPhysics Letters B
As a continuation of our previous work on the conservation and breaking of the pseudospin symmetry (PSS) in resonant states [Phys. Lett. B 847, 138320 (2023)], in this work, the PSS in nuclear single-particle bound and resonant states are investigated ...
Ting-Ting Sun, Zhi Pan Li
doaj   +1 more source

Bound States of the Exchange—Correlation Excitons in the Uniform Electron Gas by the Monte Carlo Simulations

open access: yesUniverse, 2022
The modified path integral representation of Wigner functions and the new Monte Carlo approach has been suggested to account for the impact of the interparticle interaction on the Pauli exclusion principle of fermions.
Vladimir Filinov   +2 more
doaj   +1 more source

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