Higher-form symmetries in 5d by Morrison, DR, Schafer-Nameki, S, Willett, B

“…We study higher-form symmetries in 5d quantum field theories, whose charged operators include extended operators such as Wilson line and ’t Hooft operators. …”

Integrable light-cone lattice discretizations from the universal R-matrix by Meneghelli, C, Teschner, J

“…Our goal is to develop a more general scheme for constructing integrable lattice regularisations of integrable quantum field theories. Considering the affine Toda theories as examples, we show how to construct such lattice regularisations using the representation theory of quantum affine algebras. …”

Mixed anomalies, two-groups, non-invertible symmetries, and 3d superconformal indices by Noppadol Mekareeya, Matteo Sacchi

“…Abstract Mixed anomalies, higher form symmetries, two-group symmetries and non-invertible symmetries have proved to be useful in providing non-trivial constraints on the dynamics of quantum field theories. We study mixed anomalies involving discrete zero-form global symmetries, and possibly a one-form symmetry, in 3d N $$ \mathcal{N} $$ ≥ 3 gauge theories using the superconformal index. …”
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Large-<i>S</i> and Tensor-Network Methods for Strongly-Interacting Topological Insulators by Emanuele Tirrito, Simon Hands, Alejandro Bermudez

“…In this work, we exploit these connections to study the strongly-interacting limit of certain lattice Hubbard models of topological insulators, which map onto four-Fermi quantum field theories with a Wilson-type discretisation and have been recently shown to be at reach of cold-atom quantum simulators based on synthetic spin-orbit coupling. …”
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A reduced inner product for kink states by Jarah Evslin, Hui Liu

“…Abstract Solitons in classical field theories correspond to states in quantum field theories. If the spatial dimension is infinite, then momentum eigenstates are not normalizable. …”
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The O(N) monolith reloaded: sum rules and Form Factor Bootstrap by Lucía Córdova, Miguel Correia, Alessandro Georgoudis, Antoine Vuignier

“…Abstract We revisit the space of gapped quantum field theories with a global O(N) symmetry in two spacetime dimensions. …”
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Generalized Rest Mass and Dirac’s Monopole in 5D Theory and Cosmology by Boris G. Aliyev

“…The latter leads one to novel connections between the general relativity and quantum field theories, and all that, including the (4+1) splitting of the 5D Ricci identities, brings about a better understanding of the magnetic monopole problem and the vital difference in the origins of the Maxwell equations and gives rise to surprising connections between them. …”
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A post-Gaussian approach to dipole symmetries and interacting fractons by J. Molina-Vilaplana

“…Abstract We use a post-Gaussian variational approach to non-perturbatively study a general class of interacting bosonic quantum field theories with generalized dipole symmetries and fractonic behavior. …”
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Feynman rules for forced wave turbulence by Vladimir Rosenhaus, Michael Smolkin

“…Employing the path integral relation between stochastic classical field theories and quantum field theories, we give a prescription, in terms of Feynman diagrams, for computing correlation functions in this system. …”
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Duality between ( 2 + 1 ) d quantum critical points by Senthil, T, Son, Dam Thanh, Wang, Chong, Xu, Cenke

“…Of particular interest are dualities that describe conformally invariant quantum field theories in (2+1)d. These arise as descriptions of quantum critical points in condensed matter physics. …”
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Duality between ( 2 + 1 ) d quantum critical points by Senthil, T., Son, Dam Thanh, Wang, Chong, Xu, Cenke

“…Of particular interest are dualities that describe conformally invariant quantum field theories in (2+1)d. These arise as descriptions of quantum critical points in condensed matter physics. …”
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Non-invertible symmetry webs by Lakshya Bhardwaj, Lea E. Bottini, Sakura Schäfer-Nameki, Apoorv Tiwari

“…Non-invertible symmetries have by now seen numerous constructions in higher dimensional Quantum Field Theories (QFT). In this paper we provide an in depth study of gauging 0-form symmetries in the presence of non-invertible symmetries. …”
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Gaussian continuous tensor network states for simple bosonic field theories by Teresa D. Karanikolaou, Patrick Emonts, Antoine Tilloy

“…Recently, a construction of such states in the continuum was put forward, providing a first step towards the goal of solving quantum field theories (QFTs) variationally. However, the proposed manifold of continuous tensor network states (CTNSs) is difficult to study in full generality, because the expectation values of local observables cannot be computed analytically. …”
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On the S-matrix of Ising field theory in two dimensions by Barak Gabai, Xi Yin

“…Abstract We explore the analytic structure of the non-perturbative S-matrix in arguably the simplest family of massive non-integrable quantum field theories: the Ising field theory (IFT) in two dimensions, which may be viewed as the Ising CFT deformed by its two relevant operators, or equivalently, the scaling limit of the Ising model in a magnetic field. …”
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Exotic field theories for (hybrid) fracton phases from imposing constraints in foliated field theory by Ryan C. Spieler

“…Abstract Fracton phases of matter are gapped phases of matter that, by dint of their sensitivity to UV data, demand non-standard quantum field theories to describe them in the IR. Two such approaches are foliated quantum theory and exotic field theory. …”
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The Physical Meaning of the Holographic Principle by Chris Fields, James F. Glazebrook, Antonino Marciano

“…Further, we show that the measurements are given meaning by quantum reference frames and sequential measurements induce topological quantum field theories. Finally, we discuss principles equivalent to the holographic principle, including Markov blankets and the free-energy principle in biology, multiple realizability and virtual machines in computer science, and active inference and interface theories in cognitive science. …”
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One-loop inelastic amplitudes from tree-level elasticity in 2d by Davide Polvara

“…Abstract We investigate the perturbative integrability of different quantum field theories in 1+1 dimensions at one loop. Starting from massive bosonic Lagrangians with polynomial-like potentials and absence of inelastic processes at the tree level, we derive a formula reproducing one-loop inelastic amplitudes for arbitrary numbers of external legs. …”
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Analyticity properties of scattering amplitude in theories with compactified space dimensions by Jnanadeva Maharana

“…In the context of nonrelativistic potential scattering, for R3⊗S1 spatial geometry, it was shown that the forward scattering amplitude does not satisfy analyticity for a class of potentials which might have important consequences if same attribute holds in relativistic quantum field theories. We address this issue with R3,1⊗S1 geometry. …”
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Aharonov-Bohm effect for confined matter in lattice gauge theories by Enrico C. Domanti, Paolo Castorina, Dario Zappalà, Luigi Amico

“…With the advent of quantum technology, lower energy analogs, capable of capturing important features of the original quantum field theories through quantum simulation, have been intensively studied. …”
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Islands for entanglement negativity by Jaydeep Kumar Basak, Debarshi Basu, Vinay Malvimat, Himanshu Parihar, Gautam Sengupta

“…We advance two alternative proposals for the island contributions to the entanglement negativity of various pure and mixed state configurations in quantum field theories coupled to semiclassical gravity. The first construction involves the extremization of an algebraic sum of the generalized Renyi entropies of order half. …”
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