76 citations · 243 across the 23 of their papers we have counts for
27 papers · 1 filter
Coulomb Branches of Noncotangent Type: a Physics Perspective
Mykola Dedushenko, Daniel Resnick
We study the Coulomb-branch sector of 3D gauge theories with half-hypermultiplets in general pseudoreal representations ("noncotangent" theories). This…
Bridging 4D QFTs and 2D VOAs via 3D high-temperature EFTs
Arash Arabi Ardehali, Mykola Dedushenko, Dongmin Gang +1
The high-temperature limit of the superconformal index, especially on higher sheets, often captures useful universal information about a theory. In 4d superconforma…
Ising BCFT from Fuzzy Hemisphere
Mykola Dedushenko
We extend the recently introduced fuzzy sphere technique for the 3d Ising CFT to the case of boundary CFT (BCFT) using the fuzzy hemisphere. This allows to study conformal boundary…
On the 4d/3d/2d view of the SCFT/VOA correspondence
Mykola Dedushenko
We start with the SCFT/VOA correspondence formulated in the Omega-background approach, and connect it to the boundary VOA in 3d theories and chiral algebras of 2d $…
Interfaces and Quantum Algebras, II: Cigar Partition Function
Mykola Dedushenko, Nikita Nekrasov
The supersymmetric cigar (half-)index or cigar partition function of 3d gauge theories contains a wealth of information. Physically, it captures the spectrum of BPS…
Interval reduction and (super)symmetry
Mykola Dedushenko, Mikhail Litvinov
We study three-dimensional quantum field theories on the interval with symmetry-preserving boundary conditions. The physics and symmetries of the effective 2D theory in the IR are…
Chiral life on a slab
Sergey Alekseev, Mykola Dedushenko, Mikhail Litvinov
We study chiral algebra in the reduction of 3D supersymmetric gauge theories on an interval with the Dirichlet boundary conditions on both en…
Remarks on Berry Connection in QFT, Anomalies, and Applications
Mykola Dedushenko
Berry connection has been recently generalized to higher-dimensional QFT, where it can be thought of as a topological term in the effective action for background couplings. Via the…
Snowmass White Paper: The Quest to Define QFT
Mykola Dedushenko
This article provides a review of the literature on rigorous definitions and constructions in Quantum Field Theory, spanning the period of seven decades. Comparing with the ideas a…
Interfaces and Quantum Algebras, I: Stable Envelopes
Mykola Dedushenko, Nikita Nekrasov
The stable envelopes of Okounkov et al. realize some representations of quantum algebras associated to quivers, using geometry. We relate these geometric considerations to quantum…
Correlators on the wall and spin chain
Mykola Dedushenko, Davide Gaiotto
We study algebras and correlation functions of local operators at half-BPS interfaces engineered by the stacks of D5 or NS5 branes in the 4d super Yang-Mills. The o…
Algebras, traces, and boundary correlators in SYM
Mykola Dedushenko, Davide Gaiotto
We study supersymmetric sectors at half-BPS boundaries and interfaces in the 4d super Yang-Mills with the gauge group , which are described by associative algebr…
4d/2d 3d/1d: A song of protected operator algebras
Mykola Dedushenko, Yifan Wang
Superconformal field theories (SCFT) are known to possess solvable yet nontrivial sectors in their full operator algebras. Two prime examples are the chiral algebra sector on a two…
From VOAs to short star products in SCFT
Mykola Dedushenko
We build a bridge between two algebraic structures in SCFT: a VOA in the Schur sector of 4d theories and an associative algebra in the Higgs sector of 3d $\mathcal{…
Chiral Algebra, Localization, Modularity, Surface defects, And All That
Mykola Dedushenko, Martin Fluder
We study the 2D vertex operator algebra (VOA) construction in 4D superconformal field theories (SCFT) on , focusing both on old puzzles as well as n…
Coulomb Branch Quantization and Abelianized Monopole Bubbling
Mykola Dedushenko, Yale Fan, Silviu Pufu +1
We develop an approach to the study of Coulomb branch operators in 3D gauge theories and the associated quantization structure of their Coulomb branches. This struc…
3d TQFTs from Argyres-Douglas theories
Mykola Dedushenko, Sergei Gukov, Hiraku Nakajima +2
We construct a new class of three-dimensional topological quantum field theories (3d TQFTs) by considering generalized Argyres-Douglas theories on with a non-trivi…
Gluing I: Integrals and Symmetries
Mykola Dedushenko
We review some aspects of the cutting and gluing law in local quantum field theory. In particular, we emphasize the description of gluing by a path integral over a space of polariz…
Gluing II: Boundary Localization and Gluing Formulas
Mykola Dedushenko
We describe applications of the gluing formalism discussed in the companion paper. When a -dimensional local theory is supersymmetric, and if we can find a supers…
Coulomb Branch Operators and Mirror Symmetry in Three Dimensions
Mykola Dedushenko, Yale Fan, Silviu S. Pufu +1
We develop new techniques for computing exact correlation functions of a class of local operators, including certain monopole operators, in three-dimensional abel…
A 2d (0,2) appetizer
Mykola Dedushenko, Sergei Gukov
Searching for the simplest non-abelian 2d gauge theory with supersymmetry and non-trivial IR physics, we propose a new duality for SQCD with c…
Vertex algebras and 4-manifold invariants
Mykola Dedushenko, Sergei Gukov, Pavel Putrov
We propose a way of computing 4-manifold invariants, old and new, as chiral correlation functions in half-twisted 2d theories that arise from compactification o…
A one-dimensional theory for Higgs branch operators
Mykola Dedushenko, Silviu S. Pufu, Ran Yacoby
We use supersymmetric localization to calculate correlation functions of half-BPS local operators in 3d superconformal field theories whose Lagrangian descriptions c…
Chiral algebras in Landau-Ginzburg models
Mykola Dedushenko
Chiral algebras in the cohomology of the supercharge of two-dimensional theories on flat spacetime are discussed. Using the supercurrent multip…