Results 41 to 50 of about 1,819 (220)
Altered brain white matter structural motor network in spinocerebellar ataxia type 3
Annals of Clinical and Translational Neurology, 2023 Objectives Spinocerebellar ataxia type 3 is a disorder within the brain network. However, the relationship between the brain network and disease severity is still unclear.
Xin‐Yuan Chen +10 more
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Interactions Between Aging and Alzheimer’s Disease on Structural Brain Networks
Frontiers in Aging Neuroscience, 2021 Normative aging and Alzheimer’s disease (AD) propagation alter anatomical connections among brain parcels. However, the interaction between the trajectories of age- and AD-linked alterations in the topology of the structural brain network is not well ...
Zhanxiong Wu +7 more
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Topological transitions in metals
Physical Review B, 2019 We investigate if a sharp topological transition in a metal with a large Fermi surface may be detected in transport measurements. In particular, we address if a skew scattering and a side jump on elastic disorder in the bulk of such a metal masks signatures of the topological transition.
Ying, Xuzhe, Kamenev, Alex
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On quasi-continuous dynamical systems and transitivity
, 2022 This paper is a contribution to the study of topological transitivity of quasi continuous dynamical systems in terms of epsilon-transitivity and indecomposability.(c) 2022 Elsevier B.V.
Fedeli A.
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Chaos-Based Image Encryption: Review, Application, and Challenges
Mathematics, 2023 Chaos has been one of the most effective cryptographic sources since it was first used in image-encryption algorithms. This paper closely examines the development process of chaos-based image-encryption algorithms from various angles, including symmetric
Bowen Zhang, Lingfeng Liu
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The Mott transition as a topological phase transition [PDF]
Physical Review B, 2020 We show that the Mott metal-insulator transition in the standard one-band Hubbard model can be understood as a topological phase transition. Our approach is inspired by the observation that the mid-gap pole in the self-energy of a Mott insulator resembles the zero-energy spectral pole of the localized surface state in a topological insulator.
Sudeshna Sen +2 more
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Grain-boundary topological phase transitions [PDF]
Proceedings of the National Academy of Sciences, 2020 Significance We reveal the existence of a topological phase transition (Kosterlitz–Thouless type) in grain boundaries (GBs)—important internal surfaces in crystalline materials. GB dynamics are controlled by the formation/migration of line defects (disconnections) with dislocation and step character. Below the GB KT transition, disconnections
Kongtao Chen +2 more
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Induced Representation Method in the Theory of Electron Structure and Superconductivity
Advances in Mathematical Physics, 2019 It is shown that the application of theorems of induced representations method, namely, Frobenius reciprocity theorem, transitivity of induction theorem, and Mackey theorem on symmetrized squares, makes simplifying standard techniques in the theory of ...
V. G. Yarzhemsky
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Topology and Phase Transitions: Paradigmatic Evidence [PDF]
Physical Review Letters, 2000 We report upon the numerical computation of the Euler characteristic χ(a topologic invariant) of the equipotential hypersurfaces Σ_v of the configuration space of the two-dimensional lattice $ϕ^4$ model. The pattern χ(Σ_v) vs. v (potential energy) reveals that a major topology change in the family {Σ_v}_{v\in R} is at the origin of the phase transition
Franzosi, R., Pettini, M., Spinelli, L.
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Loss-Driven Topological Transitions in Lasing
Physical Review Letters, 2022 We experimentally observe lasing in a hexamer plasmonic lattice and find that when tuning the scale of the unit cell, the polarization winding of the emission changes. By a theoretical analysis we identify the lasing modes as quasi bound states in continuum (quasi-BICs) of topological charges of zero, one or two.
Heilmann, Rebecca +6 more
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