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hep-th2025
From Asymptotically Flat Gravity to Finite Causal Diamonds
Luca Ciambelli, Temple He, Kathryn M. Zurek
We demonstrate that the phase space of the soft sector of asymptotically flat gravity in four spacetime dimensions can be identified with that of a spherically symmetric finite cas…
hep-th2025
Effective density matrix for vacua in asymptotically flat gravity
Temple He, Prahar Mitra, Kathryn M. Zurek
We explicitly construct the density matrix associated to the vacuum state of a large spherically symmetric causal diamond of area in four-dimensional asymptotically flat gravit…
hep-th2025★ 4 cited
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…