39 citations · 339 across the 21 of their papers we have counts for
22 papers
Schur index and line operators
Zhaoting Guo, Yutong Li, Yiwen Pan +1
4d SCFTs and their invariants can be often enriched by non-local BPS operators. In this paper we study the flavored Schur index of several types of N = 2 SCFTs wi…
Flavored modular differential equations
Yiwen Pan, Yufan Wang
Flavored modular differential equations sometimes arise from null states or their descendants in a chiral algebra with continuous flavor symmetry. In this paper we focus on Kac-Moo…
Surface defects, flavored modular differential equations and modularity
Haocong Zheng, Yiwen Pan, Yufan Wang
Every 4d SCFT corresponds to an associated VOA , which is in general non-rational with a more involved representation theor…
Explore the Origin of Spontaneous Symmetry Breaking from Adaptive Perturbation Method
Chen-Te Ma, Yiwen Pan, Hui Zhang
Spontaneous symmetry breaking occurs when the underlying laws of a physical system are symmetric, but the vacuum state chosen by the system is not. The (3+1)d theory is relat…
The exact Schur index in closed form
Yiwen Pan, Wolfger Peelaers
The Schur limit of the superconformal index of a four-dimensional N = 2 superconformal field theory encodes rich physical information about the protected spectrum of the theory. Fo…
Defects, modular differential equations, and free field realization of N = 4 VOAs
Yiwen Pan, Yufan Wang, Haocong Zheng
For all 4d SYM theories with simple gauge groups , we show that the residues of the integrands in the Schur indices, which are related to Guk…
Intersecting Surface defects and 3d Superconformal indices
Junfeng Liu, Yiwen Pan, Hong-Hao Zhang
We compute the 3d N = 2 superconformal indices for 3d/1d coupled systems, which arise as the worldvolume theories of intersecting surface defects engineered by Higgsing 5d N = 1 ga…
Schur correlation functions from q-deformed Yang-Mills
Yufan Wang, Yiwen Pan
We construct the wave functions in the q-deformed 2d Yang-Mills theory that compute torus correlation functions of affine currents in the VOA associated to a class of 4d SC…
Deformation quantizations from vertex operator algebras
Yiwen Pan, Wolfger Peelaers
In this note we address the question whether one can recover from the vertex operator algebra associated with a four-dimensional N=2 superconformal field theory the deformation qua…
Schur correlation functions on
Yiwen Pan, Wolfger Peelaers
The Schur limit of the superconformal index of four-dimensional superconformal field theories has been shown to equal the supercharacter of the vacuum module of thei…
3d Mirror Symmetry from S-duality
Fabrizio Nieri, Yiwen Pan, Maxim Zabzine
We consider type IIB symmetry to relate the partition functions of different 5d supersymmetric Abelian linear quiver Yang-Mills theories in the -background an…
Bootstrapping the partition function
Fabrizio Nieri, Yiwen Pan, Maxim Zabzine
We consider SQCD on and propose a Higgs branch-like expression for its partition function. We support the result by arguing that the knowledge of certain BPS codimensi…
-Virasoro modular triple
Fabrizio Nieri, Yiwen Pan, Maxim Zabzine
Inspired by 5d supersymmetric Yang-Mills theories placed on the compact space , we propose an intriguing algebraic construction for the -Virasoro algebra. We show…
3d Expansions of 5d Instanton Partition Functions
Fabrizio Nieri, Yiwen Pan, Maxim Zabzine
We propose a set of novel expansions of Nekrasov's instanton partition functions. Focusing on 5d supersymmetric pure Yang-Mills theory with unitary gauge group on $\mathbb{C}^2_{q,…
Chiral Algebras, Localization and Surface Defects
Yiwen Pan, Wolfger Peelaers
Four-dimensional N = 2 superconformal quantum field theories contain a subsector carrying the structure of a chiral algebra. Using localization techniques, we show for the free hyp…
Intersecting Surface Defects and Instanton Partition Functions
Yiwen Pan, Wolfger Peelaers
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 a…
Intersecting Surface Defects and Two-Dimensional CFT
Jaume Gomis, Bruno Le Floch, Yiwen Pan +1
We initiate the study of intersecting surface operators/defects in four-dimensional quantum field theories (QFTs). We characterize these defects by coupled 4d/2d/0d theories constr…
Ellipsoid partition function from Seiberg-Witten monopoles
Yiwen Pan, Wolfger Peelaers
We study Higgs branch localization of N=2 supersymmetric theories placed on compact Euclidean manifolds. We analyze the resulting localization equations in detail on the four-spher…
On rigid supersymmetry and notions of holomorphy in five dimensions
Yiwen Pan, Johannes Schmude
We study the equations governing rigid N=1 supersymmetry in five dimensions. If the supersymmetry spinor satisfies a reality condition, these are foliations admitting families of a…
5d Higgs Branch Localization, Seiberg-Witten Equations and Contact Geometry
Yiwen Pan
In this paper we apply the idea of Higgs branch localization to 5d supersymmetric theories of vector multiplet and hypermultiplets, obtained as the rigid limit of …
Note on a Cohomological Theory of Contact-Instanton and Invariants of Contact Structures
Yiwen Pan
In the localization of 5-dimensional N = 1 super-Yang-Mills, contact-instantons arise as non-perturbative contributions. In this note, we revisit such configurations and discuss th…
Rigid Supersymmetry on 5-dimensional Riemannian Manifolds and Contact Geometry
Yiwen Pan
In this note we generalize the methods of [1][2][3] to 5-dimensional Riemannian manifolds M. We study the relations between the geometry of M and the number of solutions to a gener…