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Symmetry TFTs for Non-Invertible Defects

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26 Pith papers citing it
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abstract

Given any symmetry acting on a $d$-dimensional quantum field theory, there is an associated $(d+1)$-dimensional topological field theory known as the Symmetry TFT (SymTFT). The SymTFT is useful for decoupling the universal quantities of quantum field theories, such as their generalized global symmetries and 't Hooft anomalies, from their dynamics. In this work, we explore the SymTFT for theories with Kramers-Wannier-like duality symmetry in both $(1+1)$d and $(3+1)$d quantum field theories. After constructing the SymTFT, we use it to reproduce the non-invertible fusion rules of duality defects, and along the way we generalize the concept of duality defects to \textit{higher} duality defects. We also apply the SymTFT to the problem of distinguishing intrinsically versus non-intrinsically non-invertible duality defects in $(1+1)$d.

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representative citing papers

Non-Invertible Anyon Condensation and Level-Rank Dualities

hep-th · 2023-12-26 · unverdicted · novelty 8.0

New dualities in 3d TQFTs are derived via non-invertible anyon condensation, generalizing level-rank dualities and providing new presentations for parafermion theories, c=1 orbifolds, and SU(2)_N.

Fracton Topological Holography

quant-ph · 2026-06-02 · unverdicted · novelty 7.0

Introduces FTH as an extension of TH/SymTFT to type-I and type-II fracton orders, demonstrating boundary switches and dualities for X-cube and Haah's code via stabilizer formalism.

Half-Spacetime Gauging of 2-Group Symmetry in 3d

hep-th · 2026-05-07 · unverdicted · novelty 7.0 · 2 refs

Constructs non-invertible duality defects in (2+1)d QFTs from half-spacetime gauging of 2-group symmetries and derives explicit fusion rules with examples in U(1)^3 gauge theories.

SymTFT in Superspace

hep-th · 2026-04-16 · unverdicted · novelty 7.0

A supersymmetric SymTFT (SuSymTFT) is constructed as a super-BF theory on (n|m)-dimensional supermanifolds and verified for compact and chiral super-bosons in two dimensions.

Generalized Complexity Distances and Non-Invertible Symmetries

hep-th · 2026-04-15 · unverdicted · novelty 7.0

Non-invertible symmetries define quantum gates with generalized complexity distances, and simple objects in symmetry categories turn out to be computationally complex in concrete 4D and 2D QFT examples.

Hilbert Space Fragmentation from Generalized Symmetries

hep-lat · 2026-04-14 · unverdicted · novelty 7.0

Generalized symmetries generate exponentially many Krylov sectors in quantum many-body systems, showing that Hilbert space fragmentation does not by itself imply ergodicity breaking.

Lattice chiral symmetry from bosons in 3+1d

hep-th · 2026-04-07 · unverdicted · novelty 7.0

A bosonic lattice model realizes exact chiral symmetry and its anomaly in 3+1d, with the continuum limit a compact boson theory with axion-like coupling.

On the SymTFTs of Finite Non-Abelian Symmetries

hep-th · 2026-03-12 · unverdicted · novelty 7.0

Constructs BF-like 3D SymTFT Lagrangians for finite non-Abelian groups presented as extensions, yielding surface-attaching non-genuine line operators and Drinfeld-center fusion rules.

SymTFT construction of gapless exotic-foliated dual models

cond-mat.str-el · 2025-04-15 · unverdicted · novelty 7.0

Develops a Mille-feuille SymTFT construction that generates foliated and exotic dual bulk theories realizing gapless boundary models with spontaneous continuous subsystem symmetry breaking, including duals of the XY plaquette and XYZ cube models.

On Lagrangians of Non-abelian Dijkgraaf-Witten Theories

hep-th · 2026-04-02 · accept · novelty 6.5

BF Lagrangians for non-abelian DW theories (e.g. dihedral groups) are obtained by gauging H^(0) symmetries of abelian DW theories, with twisted cohomologies and condensation-defect operators verified by character-table linking.

Notes on (-2)-form symmetries

hep-th · 2026-06-04 · conditional · novelty 6.0

(-2)-form symmetries are realized as non-genuine defects in the Symmetry TFT and relate theories with different anomaly or associator data.

Quiver Approach to Symmetry Theories

hep-th · 2026-05-28 · unverdicted · novelty 6.0

An algebraic method using the path algebra of quivers extracts symmetry anomaly data for 5D SCFTs engineered from M-theory on Calabi-Yau cones.

Categorical Symmetries via Operator Algebras

hep-th · 2026-04-28 · unverdicted · novelty 6.0

The symmetry category of a 2D QFT with G-symmetry and anomaly k equals the twisted Hilbert space category Hilb^k(G), whose Drinfeld center is the twisted representation category of the conjugation groupoid C*-algebra, enabling braiding computations in the 3D SymTFT.

Generalized Families of QFTs

hep-th · 2026-02-09 · conditional · novelty 6.0

Broken higher-group and non-invertible symmetries still act on the space of couplings, and their 'family anomalies' force the infrared theory to be gapless, spontaneously broken, or interrupted by a phase transition.

The Line, the Strip and the Duality Defect

hep-th · 2026-02-03 · conditional · novelty 6.0

The XY-plaquette model is claimed to possess a continuous SO(2) non-invertible duality symmetry at arbitrary coupling, realized by open condensation defects in its symmetry TFT.

Self-$G$-ality in 1+1 dimensions

cond-mat.str-el · 2024-05-24 · unverdicted · novelty 5.0

The paper defines self-G-ality conditions for fusion category symmetries in 1+1D systems and derives LSM-type constraints on many-body ground states along with lattice model examples.

ICTP Lectures on (Non-)Invertible Generalized Symmetries

hep-th · 2023-05-29 · accept · novelty 2.0

Lecture notes explain non-invertible generalized symmetries in QFTs as topological defects arising from stacking with TQFTs and gauging diagonal symmetries, plus their action on charges and the SymTFT framework.

citing papers explorer

Showing 26 of 26 citing papers.

  • Non-Invertible Anyon Condensation and Level-Rank Dualities hep-th · 2023-12-26 · unverdicted · none · ref 46

    New dualities in 3d TQFTs are derived via non-invertible anyon condensation, generalizing level-rank dualities and providing new presentations for parafermion theories, c=1 orbifolds, and SU(2)_N.

  • Chiral Tube Algebras I: Topological Defect Lines, Twisted Modules, and Finite Gauging hep-th · 2026-07-08 · accept · none · ref 35 · internal anchor

    Chiral tube algebras unify chiral algebras and TDLs by acting on twisted defect spaces via local and non-local currents, with modules isomorphic to twisted modules of the parent algebras.

  • Entanglement fingerprint of a non-invertible symmetry: exact Fibonacci cut charges on the lattice quant-ph · 2026-07-01 · unverdicted · none · ref 6

    Even-length antiferromagnetic ground state of the critical golden chain carries exact Fibonacci cut-charge weights P_tau/P_1=phi^2 and boundary entropy log g=log phi for the duality defect.

  • Fracton Topological Holography quant-ph · 2026-06-02 · unverdicted · none · ref 53

    Introduces FTH as an extension of TH/SymTFT to type-I and type-II fracton orders, demonstrating boundary switches and dualities for X-cube and Haah's code via stabilizer formalism.

  • Half-Spacetime Gauging of 2-Group Symmetry in 3d hep-th · 2026-05-07 · unverdicted · none · ref 40 · 2 links

    Constructs non-invertible duality defects in (2+1)d QFTs from half-spacetime gauging of 2-group symmetries and derives explicit fusion rules with examples in U(1)^3 gauge theories.

  • SymTFT in Superspace hep-th · 2026-04-16 · unverdicted · none · ref 15

    A supersymmetric SymTFT (SuSymTFT) is constructed as a super-BF theory on (n|m)-dimensional supermanifolds and verified for compact and chiral super-bosons in two dimensions.

  • Generalized Complexity Distances and Non-Invertible Symmetries hep-th · 2026-04-15 · unverdicted · none · ref 48

    Non-invertible symmetries define quantum gates with generalized complexity distances, and simple objects in symmetry categories turn out to be computationally complex in concrete 4D and 2D QFT examples.

  • Hilbert Space Fragmentation from Generalized Symmetries hep-lat · 2026-04-14 · unverdicted · none · ref 51

    Generalized symmetries generate exponentially many Krylov sectors in quantum many-body systems, showing that Hilbert space fragmentation does not by itself imply ergodicity breaking.

  • Lattice chiral symmetry from bosons in 3+1d hep-th · 2026-04-07 · unverdicted · none · ref 87

    A bosonic lattice model realizes exact chiral symmetry and its anomaly in 3+1d, with the continuum limit a compact boson theory with axion-like coupling.

  • On the SymTFTs of Finite Non-Abelian Symmetries hep-th · 2026-03-12 · unverdicted · none · ref 20

    Constructs BF-like 3D SymTFT Lagrangians for finite non-Abelian groups presented as extensions, yielding surface-attaching non-genuine line operators and Drinfeld-center fusion rules.

  • SymTFT construction of gapless exotic-foliated dual models cond-mat.str-el · 2025-04-15 · unverdicted · none · ref 17

    Develops a Mille-feuille SymTFT construction that generates foliated and exotic dual bulk theories realizing gapless boundary models with spontaneous continuous subsystem symmetry breaking, including duals of the XY plaquette and XYZ cube models.

  • Defect Charges, Gapped Boundary Conditions, and the Symmetry TFT hep-th · 2024-08-02 · unverdicted · none · ref 53

    Defect charges under generalized symmetries correspond one-to-one with gapped boundary conditions of the Symmetry TFT Z(C) on Y = Σ_{d-p+1} × S^{p-1} via dimensional reduction.

  • On Lagrangians of Non-abelian Dijkgraaf-Witten Theories hep-th · 2026-04-02 · accept · none · ref 42

    BF Lagrangians for non-abelian DW theories (e.g. dihedral groups) are obtained by gauging H^(0) symmetries of abelian DW theories, with twisted cohomologies and condensation-defect operators verified by character-table linking.

  • Notes on (-2)-form symmetries hep-th · 2026-06-04 · conditional · none · ref 68

    (-2)-form symmetries are realized as non-genuine defects in the Symmetry TFT and relate theories with different anomaly or associator data.

  • Quiver Approach to Symmetry Theories hep-th · 2026-05-28 · unverdicted · none · ref 26

    An algebraic method using the path algebra of quivers extracts symmetry anomaly data for 5D SCFTs engineered from M-theory on Calabi-Yau cones.

  • From Baby Universes to Narain Moduli: Topological Boundary Averaging in SymTFTs hep-th · 2026-05-07 · unverdicted · none · ref 82

    Ensemble averaging in holography is reframed as averaging over topological completions of a relative theory via SymTFT boundary conditions, reproducing known moments in Marolf-Maxfield and Narain models.

  • Categorical Symmetries via Operator Algebras hep-th · 2026-04-28 · unverdicted · none · ref 12

    The symmetry category of a 2D QFT with G-symmetry and anomaly k equals the twisted Hilbert space category Hilb^k(G), whose Drinfeld center is the twisted representation category of the conjugation groupoid C*-algebra, enabling braiding computations in the 3D SymTFT.

  • Generalized Families of QFTs hep-th · 2026-02-09 · conditional · none · ref 49

    Broken higher-group and non-invertible symmetries still act on the space of couplings, and their 'family anomalies' force the infrared theory to be gapless, spontaneously broken, or interrupted by a phase transition.

  • The Line, the Strip and the Duality Defect hep-th · 2026-02-03 · conditional · none · ref 17

    The XY-plaquette model is claimed to possess a continuous SO(2) non-invertible duality symmetry at arbitrary coupling, realized by open condensation defects in its symmetry TFT.

  • Generalizing quantum dimensions: Symmetry-based classification of local pseudo-Hermitian systems and the corresponding domain walls hep-th · 2025-11-14 · unverdicted · none · ref 120

    Generalized quantum dimensions from SymTFTs classify massless and massive RG flows in pseudo-Hermitian systems and relate coset constructions to domain walls.

  • Hilbert Space and Defect Hilbert Spaces Associated with Categorical Symmetries hep-th · 2026-05-27 · unverdicted · none · ref 13

    A quantum mechanical framework is given for Hilbert and defect spaces of line operators in BF+kCS TQFT, with line operator action realized by convolution kernels and matches to Verlinde and semiclassical Hopf-link data.

  • Self-$G$-ality in 1+1 dimensions cond-mat.str-el · 2024-05-24 · unverdicted · none · ref 22

    The paper defines self-G-ality conditions for fusion category symmetries in 1+1D systems and derives LSM-type constraints on many-body ground states along with lattice model examples.

  • What's Done Cannot Be Undone: TASI Lectures on Non-Invertible Symmetries hep-th · 2023-08-01 · unverdicted · none · ref 89

    A survey of non-invertible symmetries with constructions in the Ising model and applications to neutral pion decay and other systems.

  • ICTP Lectures on (Non-)Invertible Generalized Symmetries hep-th · 2023-05-29 · accept · none · ref 34

    Lecture notes explain non-invertible generalized symmetries in QFTs as topological defects arising from stacking with TQFTs and gauging diagonal symmetries, plus their action on charges and the SymTFT framework.

  • Lectures on Generalized Symmetries hep-th · 2023-07-14 · unverdicted · none · ref 141

    Lecture notes that systematically introduce higher-form symmetries, SymTFTs, higher-group symmetries, and related concepts in QFT using gauge theory examples.

  • Defect Conformal Manifolds along RG Domain Walls between $\mathbb Z_N$-Parafermions and Minimal Models hep-th · 2026-05-24 · unreviewed · ref 14