Non-invertible symmetries in supergravity by Eduardo García-Valdecasas

“…Abstract Non-invertible symmetries have been extensively studied in quantum field theories in recent years. In this note we initiate their study in supergravity. …”
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Effective Hamiltonians and Counterterms for Hamiltonian Truncation by Joan Elias Miró, James Ingoldby

“…Abstract We outline a procedure for applying Hamiltonian Truncation to Quantum Field Theories (QFTs) that have UV divergences. To do this, we derive a novel representation of an Effective Hamiltonian which makes manifest some of its important properties (e.g. the non-perturbative matching of the spectra between the UV theory and the theory described by the Effective Hamiltonian). …”
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The full analytic trans-series in integrable field theories by Zoltán Bajnok, János Balog, István Vona

“…We analyze a family of generalized energy densities in integrable quantum field theories in the presence of an external field coupled to a conserved charge. …”
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Non-Fermi liquids from holography by Liu, Hong, McGreevy, John, Vegh, David

“…They are identified via the response functions of composite fermionic operators in a class of strongly interacting quantum field theories at finite density, computed using the AdS/CFT correspondence. …”
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Chiral algebras, localization and surface defects by Pan, Y, Peelaers, W

“…Four-dimensional N = 2 superconformal quantum field theories contain a subsector carrying the structure of a chiral algebra. …”

The Kapustin-Li formula revisited by Dyckerhoff, T, Murfet, D

“…This allows us to define topological quantum field theories with matrix factorizations as boundary conditions.…”

On the canonical c-function in 4-d field theories possessing supergravity duals by Porrati, M, Starinets, A

“…We study monotonicity and other properties of the canonical c-function (defined through the correlator of the energy-momentum tensor) in some holographic duals of 4-d quantum field theories. The canonical c-function and its derivatives are related to the 5d Green's function of the dual supergravity theory. …”

Fermionic higher-form symmetries by Yi-Nan Wang, Yi Zhang

“…They include the free fermionic tensor theories, a new type of fermionic topological quantum field theories, as well as the exotic 6d (4,0) theory. …”
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Bootstrapping the a-anomaly in 4d QFTs by Denis Karateev, Jan Marucha, João Penedones, Biswajit Sahoo

“…Abstract We study gapped 4d quantum field theories (QFTs) obtained from a relevant deformation of a UV conformal field theory (CFT). …”
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Generalized symmetries of topological field theories by Ben Gripaios, Oscar Randal-Williams, Joseph Tooby-Smith

“…Abstract We study generalized symmetries in a simplified arena in which the usual quantum field theories of physics are replaced with topological field theories and the smooth structure with which the symmetry groups of physics are usually endowed is forgotten. …”
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2-Group symmetries and M-theory by Michele Del Zotto, Iñaki García Etxebarria, Sakura Schäfer-Nameki

“…Quantum Field Theories engineered in M-theory can have 2-group symmetries, mixing 0-form and 1-form symmetry backgrounds in non-trivial ways. …”
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Signal/noise optimization strategies for stochastically estimated correlation functions by Detmold, William, Endres, Michael G

“…Numerical studies of quantum field theories usually rely upon an accurate determination of stochastically estimated correlation functions in order to extract information about the spectrum of the theory and matrix elements of operators. …”
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Intersecting surface defects and instanton partition functions by Pan, Y, Peelaers, W

“…We analyze intersecting surface defects inserted in interacting four-dimensional N = 2 supersymmetric quantum field theories. We employ the realization of a class of such systems as the infrared fixed points of renormalization group flows from larger theories, triggered by perturbed Seiberg-Witten monopole-like configurations, to compute their partition functions. …”

2-Group symmetries and M-theory by Del Zotto, M, Etxebarria, IG, Schäfer-Nameki, S

“…Quantum Field Theories engineered in M-theory can have 2-group symmetries, mixing 0-form and 1-form symmetry backgrounds in non-trivial ways. …”

Anomalies of QFTs from M-theory and holography by Bah, I, Bonetti, F, Minasian, R, Nardoni, E

“…We describe a systematic way of computing the ’t Hooft anomalies for continuous symmetries of Quantum Field Theories in even dimensions that can be geometrically engineered from M5-branes. …”

Holographic QFTs on AdS d , wormholes and holographic interfaces by A. Ghodsi, J. K. Ghosh, E. Kiritsis, F. Nitti, V. Nourry

“…Abstract We consider three related topics: (a) Holographic quantum field theories on AdS spaces. (b) Holographic interfaces of flat space QFTs. …”
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New physics vs new paradigms: distinguishing CPT violation from NSI by G. Barenboim, C. A. Ternes, M. Tórtola

“…Abstract Our way of describing Nature is based on local relativistic quantum field theories, and then CPT symmetry, a natural consequence of Lorentz invariance, locality and hermiticity of the Hamiltonian, is one of the few if not the only prediction that all of them share. …”
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Discrete integrable systems, supersymmetric quantum mechanics, and framed BPS states by Michele Cirafici, Michele Del Zotto

“…With the aim of giving a better understanding of the above conjecture, in this paper we revisit the description of framed BPS states of four-dimensional relativistic quantum field theories with eight conserved supercharges in terms of supersymmetric quantum mechanics. …”
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Intersecting surface defects and instanton partition functions by Yiwen Pan, Wolfger Peelaers

“…Abstract We analyze intersecting surface defects inserted in interacting four-dimensional N = 2 $$ \mathcal{N}=2 $$ supersymmetric quantum field theories. We employ the realization of a class of such systems as the infrared fixed points of renormalization group flows from larger theories, triggered by perturbed Seiberg-Witten monopole-like configurations, to compute their partition functions. …”
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Exact flow equation for the divergence functional by Stefan Floerchinger

“…An exact functional renormalization group flow equation is derived for the divergence functional which is a generalization of the Kullback-Leibler divergence to quantum field theories in the Euclidean domain. It compares distributions with different sources and field expectation values. …”
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