Homotopy classification of knotted defects in bounded domains

Fuente: arXiv
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Auteurs principaux: Nozaki, Yuta, Palmer, David, Koda, Yuya
Format: Preprint
Publié: 2024
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author Nozaki, Yuta
Palmer, David
Koda, Yuya
author_facet Nozaki, Yuta
Palmer, David
Koda, Yuya
contents Nozaki et.~al.\ gave a homotopy classification of the knotted defects of ordered media in three-dimensional space by considering continuous maps from complements of spatial graphs to the order parameter space modulo a certain equivalence relation. We extend their result by giving a classification scheme for ordered media in handlebodies, where defects are allowed to reach the boundary. Through monodromies around meridional loops, global defects are described in terms of planar diagrams whose edges are colored by elements of the fundamental group of the order parameter space. We exhibit examples of this classification in octahedral frame fields and biaxial nematic liquid crystals.
format Preprint
id arxiv_https___arxiv_org_abs_2411_03918
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Homotopy classification of knotted defects in bounded domains
Nozaki, Yuta
Palmer, David
Koda, Yuya
Soft Condensed Matter
Mathematical Physics
Geometric Topology
57Z05 (Primary) 57K10, 76A15 (Secondary)
Nozaki et.~al.\ gave a homotopy classification of the knotted defects of ordered media in three-dimensional space by considering continuous maps from complements of spatial graphs to the order parameter space modulo a certain equivalence relation. We extend their result by giving a classification scheme for ordered media in handlebodies, where defects are allowed to reach the boundary. Through monodromies around meridional loops, global defects are described in terms of planar diagrams whose edges are colored by elements of the fundamental group of the order parameter space. We exhibit examples of this classification in octahedral frame fields and biaxial nematic liquid crystals.
title Homotopy classification of knotted defects in bounded domains
topic Soft Condensed Matter
Mathematical Physics
Geometric Topology
57Z05 (Primary) 57K10, 76A15 (Secondary)
url https://arxiv.org/abs/2411.03918