3 papers
hep-th2026
Flat Space Entanglement: A Coulomb Branch Perspective
Eivind Jørstad, Robert C. Myers, Sabrina Pasterski
We study holographic entanglement entropy in Coulomb-branch solutions describing spherical shells of D-branes. The corresponding throat geometries contain a flat-space bubble in…
hep-th2025
Collinear Corrections to the Cachazo-Strominger Soft Theorem
Eivind Jørstad, Sruthi A. Narayanan
Soft theorems describe the behavior of scattering amplitudes when one or several external particles are taken to be energetically soft. In tree-level gravity there are universal so…
hep-th2024
A Comment on Boundary Correlators: Soft Omissions and the Massless S-Matrix
Eivind Jørstad, Sabrina Pasterski
We revisit the extrapolate dictionary for massless scattering in flat spacetime and identify a soft contribution that is typically dropped from the saddle point approximation. We s…