Results 21 to 30 of about 3,455,071 (307)

Topological heterogeneity and evaporation dynamics of irregular water droplets

open access: yesScientific Reports, 2021
Water droplets sitting between wires are ubiquitous in nature and industry, often showing irregular (non-spherical) droplet shapes. To understand their topological singularity and evaporation mechanism, measuring volume changes of irregular water ...
Yeseul Kim   +3 more
doaj   +1 more source

Fixed Points and Dynamic Topological Phenomena in a Parity-Time-Symmetric Quantum Quench

open access: yesiScience, 2019
Summary: We identify dynamic topological phenomena such as dynamic Chern numbers and dynamic quantum phase transitions in quantum quenches of the non-Hermitian Su-Schrieffer-Heeger Hamiltonian with parity-time (PT) symmetry.
Xingze Qiu   +4 more
doaj   +1 more source

Topological origin of quantized transport in non-Hermitian Floquet chains

open access: yesPhysical Review Research, 2020
We show that non-Hermiticity enables topological phases with unidirectional transport in one-dimensional Floquet chains. The topological signatures of these phases are noncontractible loops in the spectrum of the Floquet propagator that are separated by ...
Bastian Höckendorf   +2 more
doaj   +1 more source

On the Topological Dynamics of Dynamical Manifolds and Their Fundamental Group

open access: yesJournal of Mathematics, 2021
The paper aims to deduce the relation between the category of topology and algebra from viewpoint of geometry and dynamical system. We introduce and define a dynamical manifold as a manifold associated with a time parameter.
M. Abu-Saleem, Omar Almallah
doaj   +1 more source

Braiding Dynamics in Active Nematics

open access: yesFrontiers in Physics, 2022
In active matter systems, energy consumed at the small scale by individual agents gives rise to emergent flows at large scales. For 2D active nematic microtubule (ANMT) systems, these flows are largely characterized by the dynamics of mobile defects in ...
Spencer Ambrose Smith, Ruozhen Gong
doaj   +1 more source

Dynamics of topological defects and inflation [PDF]

open access: yesPhysical Review D, 1996
12 pages, revtex, 13 figures, some discussions are modified, to appear in Phys.Rev ...
Sakai, Nobuyuki   +3 more
openaire   +3 more sources

Unified characterization for higher-order topological phase transitions

open access: yesPhysical Review Research, 2023
Higher-order topological phase transitions (HOTPTs) are associated with closing either the bulk energy gap (type-I) or boundary energy gap (type-II) without changing symmetry, and conventionally, both transitions are captured in real space and ...
Wei Jia   +4 more
doaj   +1 more source

MacLane homology and topological Hochschild homology [PDF]

open access: yes, 1995
Fiedorowic Z, Pirashvili T, Schwänzl R, Vogt RM, Waldhausen F. MacLane homology and topological Hochschild homology. Mathematische Annalen.
Waldhausen, Friedhelm   +4 more
core   +1 more source

Topological States of Matter [PDF]

open access: yes, 2012
My research program is focused on the study of elastic deformation and topological defects in two materials: graphene and topological insulators. In both systems at low energies the electrons have a nearly linear spectrum, i.e.
Parente, Vincenzo
core   +1 more source

Inverse spin Hall effect in heterostructures “nanostructured ferromagnet/topological insulator”

open access: yesEPJ Web of Conferences, 2018
Interaction between magnetization dynamics and spin polarized electronic transport has been studied for ferromagnet nanodisk situated upon a 3D topological insulator (TI) film.
Petrov P.N.   +5 more
doaj   +1 more source

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