Results 61 to 70 of about 97,548 (183)

Topology of vibrational modes predicts plastic events in glasses

open access: yesNature Communications, 2023
The plastic deformation of crystalline materials can be understood by considering their structural defects such as disclinations and dislocations. Although also glasses are solids, their structure resembles closely the one of a liquid and hence the ...
Zhen Wei Wu   +4 more
doaj   +1 more source

A cosmological model for corrugated graphene sheets

open access: yes, 2006
Defects play a key role in the electronic structure of graphene layers flat or curved. Topological defects in which an hexagon is replaced by an n-sided polygon generate long range interactions that make them different from vacancies or other potential ...
Cortijo, Alberto   +1 more
core   +1 more source

Effect of topological defects on graphene geometry and stability

open access: yesNanotechnology, Science and Applications, 2010
Ibolya ZsoldosFaculty of Technology Sciences, Szechenyi Istvan University, Gyor, HungaryAbstract: The effect of two basic topological defects, mitosis and the Stone–Wales defect, is studied in the graphene structure.
Ibolya Zsoldos
doaj  

Revisiting thermodynamic topologies of black holes

open access: yesJournal of High Energy Physics, 2023
In the generalized off-shell free energy landscape, black holes can be treated as thermodynamic topological defects. The local topological properties of the spacetime can be reflected by the winding numbers at the defects, while the global topological ...
Chaoxi Fang, Jie Jiang, Ming Zhang
doaj   +1 more source

Yang monopoles and emergent three-dimensional topological defects in interacting bosons

open access: yes, 2018
Yang monopole as a zero-dimensional topological defect has been well established in multiple fields in physics. However, it remains an intriguing question to understand interaction effects on Yang monopoles.
Yan, Yangqian, Zhou, Qi
core   +1 more source

Topology of Three-Dimensional Active Nematic Turbulence Confined to Droplets

open access: yesPhysical Review X, 2019
Active nematics contain topological defects that (under sufficient activity) move, create, and annihilate in a chaotic quasi-steady state, called active turbulence.
Simon Čopar   +4 more
doaj   +1 more source

Topological Defects in Spherical Nematics [PDF]

open access: yesPhysical Review Letters, 2008
We study the organization of topological defects in a system of nematogens confined to the two-dimensional sphere (S^2). We first perform Monte Carlo simulations of a fluid system of hard rods (spherocylinders) living in the tangent plane of S^2. The sphere is adiabatically compressed until we reach a jammed nematic state with maximum packing density ...
Bowick, Mark   +2 more
openaire   +3 more sources

Topological defects in K3 sigma models

open access: yesJournal of High Energy Physics
We consider the topological defect lines commuting with the spectral flow and the N $$ \mathcal{N} $$ = (4, 4) superconformal symmetry in two dimensional non-linear sigma models on K3.
Roberta Angius   +2 more
doaj   +1 more source

Topological Defects in Helical Magnets [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 2018
10 pages, 6 figures, in press, JETP, November(2018)
Nattermann, T., Pokrovsky, V. L.
openaire   +2 more sources

Complementary projection defects and decomposition

open access: yesJournal of High Energy Physics, 2021
As put forward in [1] topological quantum field theories can be projected using so-called projection defects. The projected theory and its correlation functions can be completely realized within the unprojected one.
Fabian Klos, Daniel Roggenkamp
doaj   +1 more source

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