Higher gauging and non-invertible condensation defects

K Roumpedakis, S Seifnashri, SH Shao - … in Mathematical Physics, 2023 - Springer
We discuss invertible and non-invertible topological condensation defects arising from
gauging a discrete higher-form symmetry on a higher codimensional manifold in spacetime …

Symmetries and strings of adjoint QCD2

Z Komargodski, K Ohmori, K Roumpedakis… - Journal of High Energy …, 2021 - Springer
A bstract We revisit the symmetries of massless two-dimensional adjoint QCD with gauge
group SU (N). The dynamics is not sufficiently constrained by the ordinary symmetries and …

On revolutionizing quantum field theory with Tomita's modular theory

HJ Borchers - Journal of mathematical Physics, 2000 - pubs.aip.org
In the book of Haag [Local Quantum Physics (Springer Verlag, Berlin, 1992)] about local
quantum field theory the main results are obtained by the older methods of C*-and W …

Fusion category symmetry. Part II. Categoriosities at c= 1 and beyond

R Thorngren, Y Wang - Journal of High Energy Physics, 2024 - Springer
A bstract We study generalized symmetries of quantum field theories in 1+ 1D generated by
topological defect lines with no inverse. This paper follows our companion paper on gapped …

On completeness and generalized symmetries in quantum field theory

H Casini, JM Magán - Modern Physics Letters A, 2021 - World Scientific
We review a notion of completeness in QFT arising from the analysis of basic properties of
the set of operator algebras attached to regions. In words, this completeness asserts that the …

TFT construction of RCFT correlators I: Partition functions

J Fuchs, I Runkel, C Schweigert - Nuclear Physics B, 2002 - Elsevier
We formulate rational conformal field theory in terms of a symmetric special Frobenius
algebra A and its representations. A is an algebra in the modular tensor category of Moore …

Dualities in one-dimensional quantum lattice models: topological sectors

L Lootens, C Delcamp, F Verstraete - PRX Quantum, 2024 - APS
It has been a long-standing open problem to construct a general framework for relating the
spectra of dual theories to each other. Here, we solve this problem for the case of one …

[HTML][HTML] From subfactors to categories and topology I: Frobenius algebras in and Morita equivalence of tensor categories

M Müger - Journal of Pure and Applied Algebra, 2003 - Elsevier
We consider certain categorical structures that are implicit in subfactor theory. Making the
connection between subfactor theory (at finite index) and category theory explicit sheds light …

[HTML][HTML] From subfactors to categories and topology II: The quantum double of tensor categories and subfactors

M Müger - Journal of Pure and Applied Algebra, 2003 - Elsevier
For every tensor category C there is a braided tensor category Z (C), the 'center'of C. It is well
known to be related to Drinfel'd's notion of the quantum double of a finite dimensional Hopf …

Generalized symmetries and Noether's theorem in QFT

V Benedetti, H Casini, JM Magán - Journal of High Energy Physics, 2022 - Springer
A bstract We show that generalized symmetries cannot be charged under a continuous
global symmetry having a Noether current. Further, only non-compact generalized …