32 citations · 36 across the 3 of their papers we have counts for
9 papers
Heterotic Strings on , Nikulin involutions and M-theory
Bobby Samir Acharya, Gerardo Aldazabal, Anamaría Font +2
We first describe the low energy dynamics of ten dimensional heterotic supergravity compactified on the smooth, flat 3-manifold , without supersymmetry…
Lifting 1/4-BPS States in
Nathan Benjamin, Christoph A. Keller, Ida G. Zadeh
We establish a framework for doing second order conformal perturbation theory for the symmetric orbifold Sym to all orders in . This allows us to compute how 1/4-BPS st…
On Rational Points in CFT Moduli Spaces
Nathan Benjamin, Christoph A. Keller, Hirosi Ooguri +1
Motivated by the search for rational points in moduli spaces of two-dimensional conformal field theories, we investigate how points with enhanced symmetry algebras are distributed…
Stringy Tachyonic Instabilities of Non-Supersymmetric Ricci Flat Backgrounds
Bobby Samir Acharya, Gerardo Aldazabal, Eduardo Andrés +3
Superstring/M-theory compactified on compact Ricci flat manifolds have recently been conjectured to exhibit instabilities whenever the metrics do not have special holonomy. We use…
Conformal Perturbation Theory for Twisted Fields
Christoph A. Keller, Ida G. Zadeh
We investigate second order conformal perturbation theory for orbifolds of conformal field theories in two dimensions. To evaluate the necessary twisted sector corre…
Lifting 1/4-BPS States on K3 and Mathieu Moonshine
Christoph A. Keller, Ida G. Zadeh
The elliptic genus of K3 is an index for the 1/4-BPS states of its sigma model. At the torus orbifold point there is an accidental degeneracy of such states. We blow up the orbifol…