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Conway Subgroup Symmetric Compactifications Redux
Zihni Kaan Baykara, Jeffrey A. Harvey
We extend the investigation of special toroidal compactifications of heterotic string theory for which the half-BPS states provide representations of subgroups of the Conway group.…
A Passion for Theoretical Physics: a special issue in memory of Peter G. O. Freund
Jeffrey A. Harvey, Emil J. Martinec, Rafael I. Nepomechie
This is a preface to A Passion for Theoretical Physics, a special issue collection of articles published in J. Phys. A in memory of Peter G. O. Freund.
Moonshine, Superconformal Symmetry, and Quantum Error Correction
Jeffrey A. Harvey, Gregory W. Moore
Special conformal field theories can have symmetry groups which are interesting sporadic finite simple groups. Famous examples include the Monster symmetry group of a two-di…
Conformal Field Theories with Sporadic Group Symmetry
Jin-Beom Bae, Jeffrey A. Harvey, Kimyeong Lee +2
The monster sporadic group is the automorphism group of a central charge vertex operator algebra (VOA) or meromorphic conformal field theory (CFT). In addition to its …
Galois Symmetry Induced by Hecke Relations in Rational Conformal Field Theory and Associated Modular Tensor Categories
Jeffrey A. Harvey, Yichen Hu, Yuxiao Wu
Hecke operators relate characters of rational conformal field theories (RCFTs) with different central charges, and extend the previously studied Galois symmetry of modular represen…
Ramanujan's influence on string theory, black holes and moonshine
Jeffrey A. Harvey
Ramanujan influenced many areas of mathematics, but his work on q-series, on the growth of coefficients of modular forms, and on mock modular forms stands out for its depth and bre…
Hecke Relations in Rational Conformal Field Theory
Jeffrey A. Harvey, Yuxiao Wu
We define Hecke operators on vector-valued modular forms of the type that appear as characters of rational conformal field theories (RCFTs). These operators extend the previously s…
Conway Subgroup Symmetric Compactifications Of Heterotic String
Jeffrey A. Harvey, Gregory W. Moore
We investigate special compactifications of the heterotic string for which the space of half-BPS states is, in a natural way, a representation of various subgroups of the Conway gr…
Attractive Strings and Five-Branes, Skew-Holomorphic Jacobi Forms and Moonshine
Miranda C. N. Cheng, John F. R. Duncan, Sarah M. Harrison +3
We show that certain BPS counting functions for both fundamental strings and strings arising from fivebranes wrapping divisors in Calabi--Yau threefolds naturally give rise to skew…
An Uplifting Discussion of T-Duality
Jeffrey A. Harvey, Gregory W. Moore
It is well known that string theory has a T-duality symmetry relating circle compactifications of large and small radius. This symmetry plays a foundational role in string theory.…
Three-Charge Black Holes and Quarter BPS States in Little String Theory
Amit Giveon, Jeffrey Harvey, David Kutasov +1
We show that the system of NS5-branes wrapping has non-trivial vacuum structure. Different vacua have different spectra of 1/4 BPS states that carry mo…
ADE Double Scaled Little String Theories, Mock Modular Forms and Umbral Moonshine
Jeffrey A. Harvey, Sameer Murthy, Caner Nazaroglu
We consider double scaled little string theory on . These theories are labelled by a positive integer and an root lattice with Coxeter number . We count BPS…
Elliptic genera of ALE and ALF manifolds from gauged linear sigma models
Jeffrey A. Harvey, Sungjay Lee, Sameer Murthy
We compute the equivariant elliptic genera of several classes of ALE and ALF manifolds using localization in gauged linear sigma models. In the sigma model computation the equivari…
Comments on Quantum Higgs Vacua
Jeffrey A. Harvey, David Kutasov, Sungjay Lee
We study two-dimensional N=(4,4) supersymmetric gauge theories which do not have classical Higgs branches, but are believed to have isolated quantum Higgs vacua. We provide argumen…
Moonshine in Fivebrane Spacetimes
Jeffrey A. Harvey, Sameer Murthy
We consider type II superstring theory on and study perturbative BPS states in the near-horizon background of two Neveu-Schwarz fivebranes w…
Mathieu Moonshine and N=2 String Compactifications
Miranda C. N. Cheng, Xi Dong, John F. R. Duncan +3
There is a `Mathieu moonshine' relating the elliptic genus of K3 to the sporadic group M_{24}. Here, we give evidence that this moonshine extends to part of the web of dualities co…
Successes and Failures of a More Comprehensive Hard Wall AdS/QCD
Sophia K. Domokos, Jeffrey A. Harvey, Andrew B. Royston
We explore corrections to the "hard wall" gravity dual of QCD with two-form tensor fields. These fields correspond to a dimension three quark bilinear in QCD, which generates state…
Completing the framework of AdS/QCD: h_1/b_1 mesons and excited omega/rho's
Sophia K. Domokos, Jeffrey A. Harvey, Andrew B. Royston
We extend the "hard wall" gravity dual of QCD by including tensor fields b_{MN} that correspond to the QCD quark bilinear operators qbar sigma^{mu nu} q. These fields give rise to…
Setting the scale of the p p and p bar p total cross sections using AdS/QCD
Sophia K. Domokos, Jeffrey A. Harvey, Nelia Mann
This paper is an addendum to our earlier paper \cite{pom} where we computed the Pomeron contribution to and scattering in AdS/QCD. The model of \cite{pom} depe…
Gauge/gravity duality with a chiral N=(0,8) string defect
Jeffrey A. Harvey, Andrew B. Royston
We study the defect AdS/CFT correspondence for a system of N_c D3-branes intersecting certain configurations of D7-branes and O7-planes in 1+1-dimensions. The intersection is chira…
Standard Model Gauging of the WZW Term: Anomalies, Global Currents and pseudo-Chern-Simons Interactions
Jeffrey A. Harvey, Christopher T. Hill, Richard J. Hill
The standard model gauging of the Wess-Zumino-Witten term requires a modified counterterm when background fields, needed to generate the full set of currents…
Localized modes at a D-brane--O-plane intersection and heterotic Alice strings
Jeffrey A. Harvey, Andrew B. Royston
We study a system of -branes intersecting -branes and -planes in 1+1-dimensions. We use anomaly cancellation and string dualities to argue that there must be chir…
The Gross-Neveu Model from String Theory
E. Antonyan, J. A. Harvey, D. Kutasov
We study an intersecting D-brane model which at low energies describes (1+1)-dimensional chiral fermions localized at defects on a stack of N_c D4-branes. Fermions at different def…
TASI 2003 Lectures on Anomalies
Jeffrey A. Harvey
These lecture notes review the structure of anomalies and present some of their applications in field theory, string theory and M theory. They expand on material presented at the T…