41 citations · 198 across the 11 of their papers we have counts for
11 papers
Dilaton shifts, probability measures, and decomposition
E. Sharpe
In this paper we discuss dilaton shifts (Euler counterterms) arising in decomposition of two-dimensional quantum field theories with higher-form symmetries. These take a universal…
Topological operators, noninvertible symmetries and decomposition
E. Sharpe
In this paper we discuss the relationship between noninvertible topological operators, one-form symmetries, and decomposition of two-dimensional quantum field theories, focusing on…
A few recent developments in 2d (2,2) and (0,2) theories
E. Sharpe
In this note we summarize a few of the many recent developments in two-dimensional quantum field theories. We begin with a review of the current state of quantum sheaf cohomology,…
Decomposition in diverse dimensions
E. Sharpe
This paper discusses the relationships between gauge theories defined by gauge groups with finite trivially-acting centers, and theories with restrictions on nonperturbative sector…
Analogues of Mathai-Quillen forms in sheaf cohomology and applications to topological field theory
R. Garavuso, E. Sharpe
We construct sheaf-cohomological analogues of Mathai-Quillen forms, that is, holomorphic bundle-valued differential forms whose cohomology classes are independent of certain deform…
General aspects of heterotic string compactifications on stacks and gerbes
L. B. Anderson, B. Jia, R. Manion +2
In this paper we work out some basic results concerning heterotic string compactifications on stacks and, in particular, gerbes. A heterotic string compactification on a gerbe can…
Predictions for Gromov-Witten invariants of noncommutative resolutions
E. Sharpe
In this paper, we apply recent methods of localized GLSMs to make predictions for Gromov-Witten invariants of noncommutative resolutions, as defined by e.g. Kontsevich, and use tho…
Physical aspects of quantum sheaf cohomology for deformations of tangent bundles of toric varieties
R. Donagi, J. Guffin, S. Katz +1
In this paper, we will outline computations of quantum sheaf cohomology for deformations of tangent bundles of toric varieties, for those deformations describable as deformations o…
Two-dimensional topological field theories as taffy
M. Ando, E. Sharpe
In this paper we use trivial defects to define global taffy-like operations on string worldsheets, which preserve the field theory. We fold open and closed strings on a space X int…
Notes on discrete torsion in orientifolds
E. Sharpe
In this short note we discuss discrete torsion in orientifolds. In particular, we apply the physical understanding of discrete torsion worked out several years ago, as group action…
Elliptic genera of Landau-Ginzburg models over nontrivial spaces
M. Ando, E. Sharpe
In this paper, we discuss elliptic genera of (2,2) and (0,2) supersymmetric Landau-Ginzburg models over nontrivial spaces, i.e., nonlinear sigma models on nontrivial noncompact man…