Results 51 to 60 of about 836,069 (296)

Topological defects with a nonsymmetric core [PDF]

Physical Review D, 1997
19 pages including 7 embedded postscript figures, use latex, no style files needed. Submitted to Phys.
Axenides, Minos, Perivolaropoulos, Leandros   +1 more
openaire   +3 more sources

Classification of topological defects in Abelian topological states [PDF]

Physical Review B, 2013
In this paper we propose the most general classification of point-like and line-like extrinsic topological defects in (2+1)-dimensional Abelian topological states. We first map generic extrinsic defects to boundary defects, and then provide a classification of the latter. Based on this classification, the most generic point defects can be understood as
Barkeshli, Maissam, Jian, Chao-Ming, Qi, Xiao-Liang   +2 more
openaire   +2 more sources

Floquet-engineering of nodal rings and nodal spheres and their characterization using the quantum metric

Physical Review Research, 2020
Semimetals exhibiting nodal lines or nodal surfaces represent a novel class of topological states of matter. While conventional Weyl semimetals exhibit momentum-space Dirac monopoles, these more exotic semimetals can feature unusual topological defects ...
Grazia Salerno, Nathan Goldman, Giandomenico Palumbo   +2 more
doaj   +1 more source

Topological defects in silicene

, 2023
Using the molecular dynamic simulations a new class of topological defects in silicene is investigated. Si atoms in silicene belong to two triangular sublattices shifted one with respect to the other by h along the direction normal to the sheet. Silicene
Kistanov, Andrey A., R. I. Babicheva, J. A. Baimova, Baimova, J. A., Dmitriev, Sergey V., A. A. Kistanov, S. V. Dmitriev, Korznikova, Elena A., I. V. Kosarev, E. A. Korznikova, Kosarev, Igor V., Babicheva, Rita I.   +11 more
core   +1 more source

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

Topological Defects in Contracting Universes [PDF]

Physical Review Letters, 2002
We study the behaviour and consequences of cosmic string networks in contracting universes. They approximately behave during the collapse phase as a radiation fluids. Scaling solutions describing this are derived and tested against high-resolution numerical simulations.
Avelino, P. P., Martins, C. J. A. P., Santos, C., Shellard, E. P. S.   +3 more
openaire   +3 more sources

Mechanical manipulation for ordered topological defects. [PDF]

Sci Adv
Randomly distributed topological defects created during the spontaneous symmetry breaking are the fingerprints to trace the evolution of symmetry, range of interaction, and order parameters in condensed matter systems.
Gao Z, Zhang Y, Li X, Zhang X, Chen X, Du G, Hou F, Gu B, Lun Y, Zhao Y, Zhao Y, Qu Z, Jin K, Wang X, Chen Y, Liu Z, Huang H, Gao P, Mostovoy M, Hong J, Cheong SW, Wang X.   +21 more
europepmc   +2 more sources

Resonant Production of Topological Defects [PDF]

Physical Review Letters, 2000
We describe a novel phenomenon in which vortices are produced due to resonant oscillations of a scalar field which is driven by a periodically varying temperature T, with T remaining much below the critical temperature $T_c$. Also, in a rapid heating of a localized region to a temperature {\it below} $T_c$, far separated vortex and antivortex can form.
Digal, Sanatan, Ray, Rajarshi, Sengupta, Supratim, Srivastava, Ajit M.   +3 more
openaire   +3 more sources

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Topological defects as lagrangian correspondences

, 2023
Topological defects attract much recent interest in high-energy and condensed matter physics because they encode (non-invertible) symmetries and dualities.
Arvanitakis, Alex S., Alex S. Arvanitakis   +1 more
core   +1 more source