A unified field theory of topological defects and non-linear local excitations

Research output: Contribution to journalResearch articleContributedpeer-review



Topological defects and smooth excitations determine the properties of systems showing collective order. We introduce a generic non-singular field theory that comprehensively describes defects and excitations in systems with O(n) broken rotational symmetry. Within this formalism, we explore fast events, such as defect nucleation/annihilation and dynamical phase transitions where the interplay between topological defects and non-linear excitations is particularly important. To highlight its versatility, we apply this formalism in the context of Bose-Einstein condensates, active nematics, and crystal lattices.


Original languageEnglish
Article number122
Journalnpj computational materials
Issue number1
Publication statusPublished - Dec 2023

External IDs

RIS Skogvoll2023
unpaywall 10.1038/s41524-023-01077-6
ORCID /0000-0002-4217-0951/work/142237459
Scopus 85165220065
WOS 001027838800001