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hep-th2025
Exact Infrared Triangle in Massless sQED with Long-range Interactions
Sangmin Choi, Ameya Kadhe, Andrea Puhm
The logarithmic soft photon theorem in four spacetime dimensions encodes an infinite-dimensional asymptotic symmetry which acts on massive matter as a divergent superphaserotation.…
hep-th2025
Gravitational Entropy
Sangmin Choi, Malcolm J. Perry
We formulate the classical gravitational entropy of a horizon as a Noether charge that does not require the notion of a temperature, and which is applicable to horizons that are no…