Geometry and entanglement in AdS/CFT and beyond by Chen, Chang-Han

“…A semiclassical analysis on geometries has shed insights on the non-perturbative aspects of quantum field theories, some of which does not seem to require an asymptotic anti-de Sitter boundary. …”
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Intersecting surface defects and two-dimensional CFT by Gomis, J, Le Floch, B, Pan, Y, Peelaers, W

“…We initiate the study of intersecting surface operators/defects in 4D quantum field theories (QFTs). We characterize these defects by coupled 4D/2D/0D theories constructed by coupling the degrees of freedom localized at a point and on intersecting surfaces in spacetime to each other and to the 4D QFT. …”

Spectral networks, abelianization, and opers by Kidwai, O

“…<p>In this thesis we study a number of geometric structures arising in the study of four-dimensional supersymmetric quantum field theories. </p> <p>We study properties and applications of so-called “spectral networks” on Riemann surfaces C, focusing in particular on the “abelianization map” which we use to produce special coordinate systems on moduli spaces of local systems on C. …”

Stabilizing complex Langevin for real-time gauge theories with an anisotropic kernel by Kirill Boguslavski, Paul Hotzy, David I. Müller

“…Abstract The complex Langevin (CL) method is a promising approach to overcome the sign problem that occurs in real-time formulations of quantum field theories. Using the Schwinger-Keldysh formalism, we study SU(N c ) gauge theories with CL. …”
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5d to 3d compactifications and discrete anomalies by Matteo Sacchi, Orr Sela, Gabi Zafrir

“…Abstract Much insight into the dynamics of quantum field theories can be gained by studying the relationship between field theories in different dimensions. …”
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Loop corrections in Minkowski spacetime away from equilibrium. Part I. Late-time resummations by Spasen Chaykov, Nishant Agarwal, Sina Bahrami, R. Holman

“…In this paper, we calculate the late-time limit of the two-point correlator for different massless self-interacting scalar quantum field theories on a Minkowski background. We first use a late-time version of the in-in path integral starting in the vacuum of the free theory; in this limit, the calculation, including UV renormalization, reduces to that in in-out. …”
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Shape dependence of mutual information in the OPE limit: linear responses by Liangyu Chen, Huajia Wang

“…In the framework of quantum field theories (QFTs) they have better regulated UV behavior than entanglement entropy, and thus provide more direct access to universal aspects of entanglement structures. …”
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Connectomes and properties of quantum entanglement by Dmitry Melnikov

“…Abstract Topological quantum field theories (TQFT) encode properties of quantum states in the topological features of abstract manifolds. …”
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Positivity, low twist dominance and CSDR for CFTs by Agnese Bissi, Aninda Sinha

“…This representation has several features in common with the CSDR for quantum field theories. It enables a study of the expansion of the correlation function around $u=v=1/4$, which is used in the numerical conformal bootstrap program. …”
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Chaos and Thermalization in Quantum Many-Body Systems and Gravity by Vardhan, Shreya

“…This technique allows us to calculate correlation measures such as entanglement entropy or logarithmic negativity, as well as measures of information recovery from subsystems, in chaotic systems ranging from spin chains and quantum field theories to black holes. For evaporating black holes, the equilibrium approximation for entanglement entropy provides a systematic derivation of certain recent prescriptions for addressing Hawking’s information loss paradox, and explains their physical origin. …”
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From 6D superconformal field theories to dynamic gauged linear sigma models by Apruzzi, F, Hassler, F, Heckman, JJ, Melnikov, IV

“…Compactifications of six-dimensional (6D) superconformal field theories (SCFTs) on four- manifolds generate a large class of novel two-dimensional (2D) quantum field theories. We consider in detail the case of the rank-one simple non-Higgsable cluster 6D SCFTs. …”

Dynamical consequences of 1-form symmetries and the exceptional Argyres-Douglas theories by Federico Carta, Simone Giacomelli, Noppadol Mekareeya, Alessandro Mininno

“…Abstract Higher-form symmetries have proved useful in constraining the dynamics of a number of quantum field theories. In the context of the Argyres-Douglas (AD) theories of the (G, G′) type, we find that the 1-form symmetries are invariant under the Higgs branch flow, and that they are captured by the non-Higgsable sector at a generic point on the Higgs branch of the AD theory in question. …”
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Strongly correlated quantum fluids: ultracold quantum gases, quantum chromodynamic plasmas and holographic duality by Allan Adams, Lincoln D Carr, Thomas Schäfer, Peter Steinberg, John E Thomas

“…In particular, both fluids exhibit a robustly low shear viscosity to entropy density ratio, which is characteristic of quantum fluids described by holographic duality, a mapping from strongly correlated quantum field theories to weakly curved higher dimensional classical gravity. …”
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Co-Homology of Differential Forms and Feynman Diagrams by Sergio Luigi Cacciatori, Maria Conti, Simone Trevisan

“…Feynman integrals enter in several perturbative methods for solving non-linear PDE, starting from Quantum Field Theories and including General Relativity and Condensed Matter Physics. …”
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Random matrix theory for complexity growth and black hole interiors by Kar, Arjun, Lamprou, Lampros, Rozali, Moshe, Sully, James

“…This is a refined, “microcanonical” version of K-complexity that applies to theories with infinite or continuous spectra (including quantum field theories), and in the holographic theories we study exhibits exponential growth for a scrambling time, followed by linear growth until saturation at a time exponential in the entropy — a behavior that is characteristic of chaos. …”
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Strongly correlated quantum fluids: ultracold quantum gases, quantum chromodynamic plasmas and holographic duality by Adams, Allan, Carr, Lincoln D., Schafer, Thomas, Steinberg, Peter, Thomas, John E.

“…In particular, both fluids exhibit a robustly low shear viscosity to entropy density ratio, which is characteristic of quantum fluids described by holographic duality, a mapping from strongly correlated quantum field theories to weakly curved higher dimensional classical gravity. …”
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Noether Symmetries and Covariant Conservation Laws in Classical, Relativistic and Quantum Physics by Lorenzo Fatibene, Mauro Francaviglia, Silvio Mercadante

“…A few substantially new and very recent applications/examples are presented to better show the power of the methods introduced: one in Classical Mechanics (definition of strong conservation laws in a frame-independent setting and a discussion on the way in which conserved quantities depend on the choice of an observer); one in Classical Field Theories (energy and entropy in General Relativity, in its standard formulation, in its spin-frame formulation, in its first order formulation “à la Palatini” and in its extensions to Non-Linear Gravity Theories); one in Quantum Field Theories (applications to conservation laws in Loop Quantum Gravity via spin connections and Barbero–Immirzi connections).…”
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A spectral metric for collider geometry by Andrew J. Larkoski, Jesse Thaler

“…Finally, we speculate on whether the spectral approach could furnish a useful metric on the space of quantum field theories.…”
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’t Hooft anomalies and the holomorphy of supersymmetric partition functions by Cyril Closset, Lorenzo Di Pietro, Heeyeon Kim

“…Abstract We study the dependence of supersymmetric partition functions on continuous parameters for the flavor symmetry group, G F , for 2d N $$ \mathcal{N} $$ = (0, 2) and 4d N $$ \mathcal{N} $$ = 1 supersymmetric quantum field theories. In any diffeomorphism-invariant scheme and in the presence of G F ’t Hooft anomalies, the supersymmetric Ward identities imply that the partition function has a non-holomorphic dependence on the flavor parameters. …”
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Theory of oblique topological insulators by Benjamin Moy, Hart Goldman, Ramanjit Sohal, Eduardo Fradkin

“…Based on the lattice gauge theory, we present continuum topological quantum field theories (TQFTs) for oblique TI phases involving fluctuating one-form and two-form gauge fields. …”
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