Results 11 to 20 of about 98,119 (281)

Semilocal Topological Defects [PDF]

open access: yesNuclear Physics B, 1992
Semilocal defects are those formed in field theories with spontaneously broken symmetries, where the vacuum manifold $M$ is fibred by the action of the gauge group in a non-trivial way.
Abraham   +84 more
core   +3 more sources

Soft-Matter Physics Provides New Insights on Myocardial Architecture: Automatic and Quantitative Identification of Topological Defects in the Trabecular Myocardium [PDF]

open access: yesJournal of Cardiovascular Development and Disease, 2023
This article is the third in our series dedicated to the analysis of cardiac myoarchitecture as a nematic chiral liquid crystal (NCLC). Previously, we introduced the concept of topological defects (disclinations) and focused on their visual ...
Johanne Auriau   +2 more
doaj   +2 more sources

Topological Defects and Cosmology [PDF]

open access: yesPramana, 1998
Many particle physics models of matter admit solutions corresponding to stable or long-lived topological defects. In the context of standard cosmology it is then unavoidable that such defects will form during phase transitions in the very early Universe.
A Abrikosov   +99 more
core   +4 more sources

Curvature-Controlled Topological Defects [PDF]

open access: yesCrystals, 2017
Effectively, two-dimensional (2D) closed films exhibiting in-plane orientational ordering (ordered shells) might be instrumental for the realization of scaled crystals. In them, ordered shells are expected to play the role of atoms.
Luka Mesarec   +4 more
doaj   +4 more sources

Extended topological group structure due to average reflection symmetry [PDF]

open access: yesNew Journal of Physics, 2015
We extend the single-particle topological classification of insulators and superconductors to include systems in which disorder preserves average reflection symmetry.
M Diez   +3 more
doaj   +4 more sources

Experimental identification of topological defects in 2D colloidal glass [PDF]

open access: yesNature Communications
Topological defects are singularities within a field that cannot be removed by continuous transformations. The definition of these irregularities requires an ordered reference configuration, calling into question whether they exist in disordered ...
Vinay Vaibhav   +5 more
doaj   +2 more sources

Hedgehog topological defects in 3D amorphous solids [PDF]

open access: yesNature Communications
The underlying structural disorder renders the concept of topological defects in amorphous solids difficult to apply and hinders a first-principle identification of the microscopic carriers of plasticity and of regions prone to structural rearrangements (
Arabinda Bera   +2 more
doaj   +2 more sources

Resonant Production of Topological Defects [PDF]

open access: yesPhysical Review Letters, 1999
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 $T_c$.
A. M. Srivastava   +22 more
core   +5 more sources

Moiré effect enables versatile design of topological defects in nematic liquid crystals [PDF]

open access: yesNature Communications
Recent advances in surface-patterning techniques of liquid crystals have enabled the precise creation of topological defects, which promise a variety of emergent applications.
Xinyu Wang   +6 more
doaj   +2 more sources

Cosmic topological defects from holography

open access: yesJournal of High Energy Physics
This work investigates cosmic topological defects in gauge theories, focusing on models with an SU(N) gauge group coupled with a single flavor, explored through a holographic framework.
Francesco Bigazzi   +2 more
doaj   +3 more sources

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