3 papers
hep-th2025
Thermodynamics of a Spherically Symmetric Causal Diamond in Minkowski Spacetime
Kwinten Fransen, Temple He, Kathryn M. Zurek
We compute a gravitational on-shell action of a finite, spherically symmetric causal diamond in -dimensional Minkowski spacetime, finding it is proportional to the area of t…
hep-th2025
Expanding on the double copy in null Fermi coordinates
Samarth Chawla, Kwinten Fransen, Cynthia Keeler
We propose a Weyl classical double copy for a Fermi normal coordinate expansion around null geodesics. To leading order in this "Penrose expansion", we recover a previously propose…
hep-th2024
The Penrose limit of the Weyl double copy
Samarth Chawla, Kwinten Fransen, Cynthia Keeler
We embed the Penrose limit into the Weyl classical double copy. Thereby, we provide a lift of the double copy properties of plane wave spacetimes into black hole geometries and we…