20 citations · 60 across the 4 of their papers we have counts for
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hep-th2024★ 17 cited
Null Infinity and Horizons: A New Approach to Fluxes and Charges
Abhay Ashtekar, Simone Speziale
We introduce a Hamiltonian framework tailored to degrees of freedom (DOF) of field theories that reside in suitable 3-dimensional open regions, and then apply it to the gravitation…
hep-th2024★ 20 cited
Null Infinity as a Weakly Isolated Horizon
Abhay Ashtekar, Simone Speziale
Null infinity arises as a boundary of the Penrose conformal completion of an asymptotically flat physical space-time. We first note that null infinity is a weakly isolated horizon…