24 citations · 97 across the 14 of their papers we have counts for
15 papers
Orbifold resolution via hyperkahler quotients: the ALF manifold
Arnav Tripathy, Max Zimet
We propose an infinite-dimensional generalization of Kronheimer's construction of families of hyperkahler manifolds resolving flat orbifold quotients of . As in [Kro8…
A plethora of K3 metrics
Arnav Tripathy, Max Zimet
We extend our recent study of K3 metrics near the orbifold locus to the other torus orbifold loci. In particular, we provide several new constructions of K3 surfaces as h…
K3 metrics
Shamit Kachru, Arnav Tripathy, Max Zimet
We provide an explicit construction of Ricci-flat K3 metrics. It employs the technology of D-geometry, which in the case of interest is equivalent to a hyper-Kähler quotient. We re…
de Sitter Vacua from Ten Dimensions
Shamit Kachru, Manki Kim, Liam McAllister +1
We analyze the de Sitter construction of \cite{KKLT} using ten-dimensional supergravity, finding exact agreement with the four-dimensional effective theory. Starting from the fermi…
Semiclassical Entropy of BPS States in 4d Theories and Counts of Geodesics
Shamit Kachru, Richard Nally, Arnav Tripathy +1
We relate a number of results in the theory of flat surfaces to BPS spectra of a class of 4d supersymmetric quantum field theories arising from M5 branes wrapped on…
Distributions of extremal black holes in Calabi-Yau compactifications
George Hulsey, Shamit Kachru, Sungyeon Yang +1
We study non-supersymmetric extremal black hole excitations of 4d N=2 supersymmetric string vacua arising from compactification on Calabi-Yau threefolds. The values of the (vector…
K3 metrics from little string theory
Shamit Kachru, Arnav Tripathy, Max Zimet
Certain six-dimensional (1,0) supersymmetric little string theories, when compactified on , have moduli spaces of vacua given by smooth K3 surfaces. Using ideas of Gaiotto-Moo…
A comment on 4d and 5d BPS states
Shamit Kachru, Max Zimet
We discuss a phenomenon in supersymmetric field theory and string theory whereby compactifying one of the dimensions of spacetime on an arbitrarily large circle can cause BPS state…
Recounting Special Lagrangian Cycles in Twistor Families of K3 Surfaces. Or: How I Learned to Stop Worrying and Count BPS States
Shamit Kachru, Arnav Tripathy, Max Zimet
We consider asymptotics of certain BPS state counts in M-theory compactified on a K3 surface. Our investigation is parallel to (and was inspired by) recent work in the mathematics…
Strong-Weak Chern-Simons-Matter Dualities from a Lattice Construction
Jing-Yuan Chen, Max Zimet
We provide a lattice demonstration of -dimensional field theory dualities relating free Dirac or Majorana fermions to strongly-interacting bosonic Chern-Simons-matter theori…
Umbral Moonshine and String Duality
Max Zimet
By studying 2d string compactifications with half-maximal supersymmetry in a variety of duality frames, we find a natural physical setting for understanding Umbral moonshine. Near…
Two-dimensional conductors with interactions and disorder from particle-vortex duality
Hart Goldman, Michael Mulligan, S. Raghu +2
We study Dirac fermions in two spatial dimensions (2D) coupled to strongly fluctuating U(1) gauge fields in the presence of quenched disorder. Such systems are dual to theories of…
No More Walls! A Tale of Modularity, Symmetry, and Wall Crossing for 1/4 BPS Dyons
Natalie M. Paquette, Roberto Volpato, Max Zimet
We determine the generating functions of 1/4 BPS dyons in a class of 4d string vacua arising as CHL orbifolds of , a classification of which has been…
K3 String Theory, Lattices and Moonshine
Miranda C. N. Cheng, Sarah M. Harrison, Roberto Volpato +1
In this paper we address the following two closely related questions. First, we complete the classification of finite symmetry groups of type IIA string theory on $K3\times \mathbb…
Heterotic sigma models on and the Borcherds automorphic form
Sarah M. Harrison, Shamit Kachru, Natalie M. Paquette +2
We consider the spectrum of BPS states of the heterotic sigma model with supersymmetry and target, as well as its second-quantized counterpart. We show that the count…