8d gauge anomalies and the topological Green-Schwarz mechanism [PDF]
String theory provides us with 8d supersymmetric gauge theory with gauge algebras suN,so2N,spN,e6,e7ande8 $$ \mathfrak{s}\mathfrak{u}(N),\mathfrak{s}\mathfrak{o}(2N),\mathfrak{s}\mathfrak{p}(N),{\mathfrak{e}}_6,{\mathfrak{e}}_7\kern0.5em \mathrm{and ...
Iñaki García-Etxebarria +4 more
doaj +4 more sources
The discrete Green-Schwarz mechanism in 6D F-theory and elliptic genera of non-critical strings [PDF]
We study global anomalies of discrete gauge symmetries in six-dimensional supergravities and their realizations in F-theory. We explicitly construct a discrete Green-Schwarz mechanism that depends on the choice of a coupling constant and on a certain ...
Markus Dierigl +2 more
doaj +2 more sources
The Green-Schwarz mechanism and geometric anomaly relations in 2d (0,2) F-theory vacua [PDF]
We study the structure of gauge and gravitational anomalies in 2d N = (0, 2) theories obtained by compactification of F-theory on elliptically fibered Calabi-Yau 5-folds. Abelian gauge anomalies, induced at 1-loop in perturbation theory, are cancelled by
Timo Weigand, Fengjun Xu
doaj +2 more sources
Cancelling mod-2 anomalies by Green-Schwarz mechanism with $B_{\mu\nu}$ [PDF]
We study if and when mod-2 anomalies can be canceled by the Green-Schwarz mechanism with the introduction of an antisymmetric tensor field $B_{\mu\nu}$.
Shota Saito, Yuji Tachikawa
doaj +2 more sources
Heterotic Kerr-Schild Double Field Theory and its double Yang-Mills formulation
We present a formulation of heterotic Double Field Theory (DFT), where the fundamental fields are in O(D, D) representations. The theory is obtained splitting an O(D, D + K ) duality invariant DFT.
Eric Lescano, Sourav Roychowdhury
doaj +1 more source
The generalized Bergshoeff-de Roo identification. Part II
We recently introduced a T-duality covariant mechanism to compute all-order higher-derivative interactions in the heterotic string. Here we extend the formalism to account for a two-parameter family of corrections that also include the bosonic string and
W. Baron, D. Marques
doaj +1 more source
Higher-group structure in lattice Abelian gauge theory under instanton-sum modification
We consider the U(1) gauge theory on a four-dimensional torus, where the instanton number is restricted to an integral multiple of p. This theory possesses the nontrivial higher-group structure, which can be regarded as a generalization of the Green ...
Naoto Kan +3 more
doaj +1 more source
Supersymmetry, T-duality and heterotic α′-corrections
Higher-derivative interactions and transformation rules of the fields in the effective field theories of the massless string states are strongly constrained by space-time symmetries and dualities. Here we use an exact formulation of ten dimensional N $$ \
Eric Lescano +2 more
doaj +1 more source
Higher-derivative heterotic Double Field Theory and classical double copy
The generalized Kerr-Schild ansatz (GKSA) is a powerful tool for constructing exact solutions in Double Field Theory (DFT). In this paper we focus in the heterotic formulation of DFT, considering up to four-derivative terms in the action principle, while
Eric Lescano, Jesús A. Rodríguez
doaj +1 more source
Torsion in String-Inspired Cosmologies and the Universe Dark Sector
Several aspects of torsion in string-inspired cosmologies are reviewed. In particular, its connection with fundamental, string-model independent, axion fields associated with the massless gravitational multiplet of the string are discussed.
Nick E. Mavromatos
doaj +1 more source

