Results 21 to 30 of about 291,864 (276)

Braiding Dynamics in Active Nematics

Frontiers 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

Noncommutative Topological Dynamics. II [PDF]

Transactions of the American Mathematical Society, 1984
This part deals with almost periodic and weakly mixing C ∗ {C^ \ast } -flows, and with disjointness and weak disjointness of C ∗ {C^ \ast } -flows (flows on C ∗ {C^ \ast } -algebras).
openaire   +2 more sources

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

iScience, 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, Tian-Shu Deng, Ying Hu, Peng Xue, Wei Yi   +4 more
doaj   +1 more source

Topological origin of quantized transport in non-Hermitian Floquet chains

Physical 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, Andreas Alvermann, Holger Fehske   +2 more
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Unified characterization for higher-order topological phase transitions

Physical 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, Xin-Chi Zhou, Lin Zhang, Long Zhang, Xiong-Jun Liu   +4 more
doaj   +1 more source

Microscopic activity patterns in the Naming Game [PDF]

, 2006
The models of statistical physics used to study collective phenomena in some interdisciplinary contexts, such as social dynamics and opinion spreading, do not consider the effects of the memory on individual decision processes.
Andrea Baronchelli, Baronchelli A, Baronchelli A Dall'Asta L Barrat A Loreto V, Briscoe T, Castellano C, Dorogovtsev S N, Feller W, Franz S, Hurford J, Krapivsky P L, Lass R, Luca Dall'Asta, Pastor-Satorras R, Steels L, Steels L, Steels L, Weidlich W   +16 more
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On the Topological Dynamics of Dynamical Manifolds and Their Fundamental Group

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

EPJ 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., Davydova M.D., Skirdkov P.N., Zvezdin K.A., Lin J.G., Huang J.C.A.   +5 more
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Nature of vibrational eigenmodes in topologically disordered solids [PDF]

, 2002
We use a local projectional analysis method to investigate the effect of topological disorder on the vibrational dynamics in a model glass simulated by molecular dynamics. Evidence is presented that the vibrational eigenmodes in the glass are generically
A. Barrat, F. Finkemeier, G. Biroli, H. Ehrenreich, J.D. Harrop, M. Dzugutov, M. Dzugutov, M. Elenius, M. Mezard, R. Monasson, S. I. Simdyankin, S. John, S. N. Taraskin, S. R. Elliott, S.I. Simdyankin, S.I. Simdyankin, S.N. Taraskin, S.N. Taraskin, S.N. Taraskin, S.N. Taraskin, S.N. Taraskin, T.-M. Wu, T.S. Grigera, V. Martin-Mayor, V. Martin-Mayor, W. Schirmacher, Y. Ding, Y. Wan   +27 more
core   +1 more source

Interaction-induced breakdown of chiral dynamics in the Su-Schrieffer-Heeger model

Physical Review Research, 2023
The effect of interparticle interactions on topological properties is difficult to experimentally probe and quantitatively characterize. For ultracold atomic systems, although topological phases and phenomena have been recently observed in various ...
Yuqing Li, Yunfei Wang, Hongxing Zhao, Huiying Du, Jiahui Zhang, Ying Hu, Feng Mei, Liantuan Xiao, Jie Ma, Suotang Jia   +9 more
doaj   +1 more source