Results 81 to 90 of about 8,626 (300)

Dynamics of Multipole Solitons and Vortex Solitons in PT-Symmetric Triangular Lattices with Nonlocal Nonlinearity

open access: yesApplied Sciences, 2019
We investigate the evolution dynamics of solitons with complex structures in the PT-symmetric triangular lattices with nonlocal nonlinearity, including dipole solitons, six-pole solitons, and vortex solitons. Dipole solitons can be linearly stable with a
Jing Huang   +3 more
doaj   +1 more source

General equilibrium analysis in ordered topological vector spaces [PDF]

open access: yes
The second welfare theorem and the core-equivalence theorem have been proved to be fundamental tools for obtaining equilibrium existence theorems, especially in an infinite dimensional setting.
Monique Florenzano   +2 more
core  

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Crystalline metamaterials for topological properties at subwavelength scales

open access: yesNature Communications, 2017
Existing classical wave analogues of topological insulator are physically wavelength scaled, limiting potential applications. Here, Yveset al. show complex topological crystalline properties in spatially ordered metamaterials with deep subwavelength ...
Simon Yves   +5 more
doaj   +1 more source

Production Equilibria in Vector Lattices [PDF]

open access: yes
The general purpose of this paper is to prove quasiequilibrium existence theorems for production economies with general consumption sets in an infinite dimensional commodity space, without assuming any monotonicity of preferences or free-disposal in ...
Monique Florenzano, Valeri Marakulin
core  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Protected Chaos in a Topological Lattice

open access: yesAdvanced Science
AbstractThe erratic nature of chaotic behavior is thought to erode the stability of periodic behavior, including topological oscillations. However, it is discovered that in the presence of chaos, non‐trivial topology not only endures but also provides robust protection to chaotic dynamics within a topological lattice hosting non‐linear oscillators ...
Haydar Sahin   +6 more
openaire   +4 more sources

Towards a Convenient Category of Topological Domains

open access: yes, 2003
topological spaces, generalising the usual ω-continuous dcppos of domain theory. Our category supports all the standard constructions of domain theory, including the solution of recursive domain equations.
Simpson, Alex, Alex Simpson
core  

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

open access: yesAdvanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro   +13 more
wiley   +1 more source

Non-Hermitian topological metamaterials with odd elasticity

open access: yesPhysical Review Research, 2020
We establish non-Hermitian topological mechanics in one-dimensional (1D) and 2D lattices consisting of mass points connected by metabeams that lead to odd elasticity. Extended from the “non-Hermitian skin effect” in 1D systems, we demonstrate this effect
Di Zhou, Junyi Zhang
doaj   +1 more source

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