Results 1 to 10 of about 55,932 (263)

Geared Topological Metamaterials with Tunable Mechanical Stability

open access: yesPhysical Review X, 2016
The classification of materials into insulators and conductors has been shaken up by the discovery of topological insulators that conduct robustly at the edge but not in the bulk.
Anne S. Meeussen   +2 more
doaj   +2 more sources

Entropy comparison of benzothiadiazole-based covalent-organic frameworks [PDF]

open access: yesFrontiers in Chemistry
Covalent Organic Frameworks (COFs) are popular photocatalysts that utilize solar energy to generate hydrogen peroxide and evolve hydrogen because of their intrinsic porosity, robust framework, and excellent structural regularity.
Soniya Kurian   +3 more
doaj   +2 more sources

A remark on the topological stability of symplectomorphisms

open access: yesApplied Mathematics Letters, 2012
We prove that the C1 interior of the set of all topologically stable C1 symplectomorphisms is contained in the set of Anosov symplectomorphisms.
Mario Bessa, Jorge Rocha
exaly   +3 more sources

Topological and quantum stability of low-dimensional crystalline lattices with multiple nonequivalent sublattices

open access: yesNew Journal of Physics, 2022
The terms of topological and quantum stabilities of low-dimensional crystalline carbon lattices with multiple non-equivalent sublattices are coined using theoretical analysis, multilevel simulations, and available experimental structural data.
Pavel V Avramov, Artem V Kuklin
doaj   +1 more source

Topological bulk lasing modes using an imaginary gauge field

open access: yesPhysical Review Research, 2021
Topological edge modes, which are robust against disorders, have been used to enhance the spatial stability of lasers. Recently, it was revealed that topological lasers can be further stabilized using a topological phase in non-Hermitian photonic ...
Stephan Wong, Sang Soon Oh
doaj   +1 more source

A New Approach to Improve the Topological Stability in Non-Linear Dimensionality Reduction

open access: yesIEEE Access, 2020
Dimensionality reduction in the machine learning field mitigates the undesired properties of high-dimensional spaces to facilitate classification, compression, and visualization of high-dimensional data.
Mohammed Elhenawy   +3 more
doaj   +1 more source

Topological stability of kinetic k-centers [PDF]

open access: yesTheoretical Computer Science, 2018
We study the $k$-center problem in a kinetic setting: given a set of continuously moving points $P$ in the plane, determine a set of $k$ (moving) disks that cover $P$ at every time step, such that the disks are as small as possible at any point in time.
Ivor van der Hoog   +4 more
openaire   +5 more sources

Topological Descriptors and Polynomials for Analysing the Structure of Antimony Telluride

open access: yesJournal of Mathematics, 2022
In a molecular network, molecules are correlated with numerical values, which are referred to as topological indices. The chemical and physical properties of chemical substances can be determined using topological indices.
Shahid Imran   +4 more
doaj   +1 more source

Topological bulk solitons in a nonlinear photonic Chern insulator

open access: yesCommunications Physics, 2022
The combination of nonlinearity and topology has recently attracted significant attention in the field of optical physics. This work considers a photonic Chern insulator in the nonlinear regime and explores the properties of topological bulk solitons ...
Rujiang Li   +8 more
doaj   +1 more source

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