47 citations · 48 across the 3 of their papers we have counts for
3 papers
The Kontsevich-Segal Criterion in the No-Boundary State Constrains Anisotropy
Thomas Hertog, Oliver Janssen, Joel Karlsson
We show that the Kontsevich-Segal-Witten (KSW) criterion applied to the no-boundary state constrains anisotropic deformations of de Sitter space. We consider squashed and $S^…
Axion minima in string theory
Naomi Gendler, Oliver Janssen, Matthew Kleban +2
We study the landscape of axion theories in compactifications of type IIB string theory on orientifolds of Calabi-Yau threefolds. In a sample of approximately 400,000 geometries we…
Positivity bounds on effective field theories with spontaneously broken Lorentz invariance
Paolo Creminelli, Oliver Janssen, Leonardo Senatore
We derive positivity bounds on EFT coefficients in theories where boosts are spontaneously broken. We employ the analytic properties of the retarded Green's function of conserved c…