3 papers
hep-th2026
Where is tree-level heterotic string theory?
Mathieu Boisvert, Waltraut Knop, Leonardo Rastelli
We continue the tree-level S-matrix bootstrap program for quantum gravity, now in ten-dimensional theories with half-maximal supersymmetry. This setting includes the heterotic stri…
hep-th2025
Symmetric Product Orbifold Universality and the Mirage of an Emergent Spacetime
Alexandre Belin, Suzanne Bintanja, Alejandra Castro +1
We study thermal two-point functions and four-point functions involving two heavy twisted operators and two light probes in symmetric product orbifolds. We identify cases where the…
hep-th2025
Where is tree-level string theory?
Jan Albert, Waltraut Knop, Leonardo Rastelli
We investigate the space of consistent tree-level extensions of the maximal supergravities in ten dimensions. We parametrize theory space by the first few EFT coefficients and by t…