42 citations · 81 across the 10 of their papers we have counts for
11 papers · 1 filter
A Crash Course in Supersymmetric Field Theory Across Dimensions
Xingyang Yu
These notes give a cross-dimensional crash course in supersymmetric field theory. The goal is to provide enough common language to recognize the basic setups used in talks and pape…
von Neumann Subfactors and Non-invertible Symmetries
Xingyang Yu, Hao Y. Zhang
We use the language of von Neumann subfactors to investigate non-invertible symmetries in two dimensions. A fusion categorical symmetry , its module category $\mathcal…
Dualities and Symmetries of Quantum Field Theories from Brane Engineering
Xingyang Yu
This dissertation presents a study of dualities and generalized global symmetries in quantum field theories (QFTs) from the string theory perspective. Chapter 2 is based on the wor…
Intermediate Defect Groups, Polarization Pairs, and Non-invertible Duality Defects
Craig Lawrie, Xingyang Yu, Hao Y. Zhang
Within the framework of relative and absolute quantum field theories (QFTs), we present a general formalism for understanding polarizations of the intermediate defect group and con…
Top Down Approach to Topological Duality Defects
Jonathan J. Heckman, Max Hubner, Ethan Torres +2
Topological duality defects arise as codimension one generalized symmetry operators in quantum field theories (QFTs) with a duality symmetry. Recent investigations have shown that…
Spin(7) Orientifolds and 2d Triality
Sebastián Franco, Alessandro Mininno, Ángel M. Uranga +1
We present a new, geometric perspective on the recently proposed triality of 2d gauge theories, based on its engineering in terms of D1-branes probing Spin(7) o…
Disorder Averaging and its UV (Dis)Contents
Jonathan J. Heckman, Andrew P. Turner, Xingyang Yu
We present a stringy realization of quantum field theory ensembles in spacetime dimensions, thus realizing a disorder averaging over coupling constants. When each member…
2d Gauge Theories and Spin(7) Orientifolds
Sebastián Franco, Alessandro Mininno, Ángel M. Uranga +1
We initiate the geometric engineering of 2d gauge theories on D1-branes probing singularities. To do so, we introduce a new class of backgrounds obtained as quo…
BFT: a General Class of Theories, 3-Manifolds and Toric Geometry
Sebastián Franco, Xingyang Yu
We introduce and initiate the study of a general class of quiver gauge theories, defined in terms of certain 2-dimensional CW complexes on oriented 3-manif…
On the Classification of Duality Webs for Graded Quivers
Sebastian Franco, Azeem Hasan, Xingyang Yu
We study the -graded quiver theories associated to CY -folds and their order dualities. We investigate how monodromies give rise to mutation invariants, which in…
Entanglement Entropy of A Simple Non-minimal Coupling Model
Bing Sun, Weizhen Jia, Xingyang Yu
We evaluate the entanglement entropy of a non-minimal coupling Einstein-scalar theory with two approaches in classical Euclidean gravity. By analysing the equation of motion, we fi…