162 citations · 1.4k across the 30 of their papers we have counts for
5 papers · 1 filter
New dual gravitational charges
Hadi Godazgar, Mahdi Godazgar, C. N. Pope
We show that there are a further infinite number of, previously unknown, supertranslation charges. These can be viewed as duals of the known BMS charges corresponding to supertrans…
Tower of subleading dual BMS charges
Hadi Godazgar, Mahdi Godazgar, C. N. Pope
We supplement the recently found dual gravitational charges with dual charges for the whole BMS symmetry algebra. Furthermore, we extend the dual charges away from null infinity, d…
Conformal Anomaly for Non-Conformal Scalar Fields
Lorenzo Casarin, Hadi Godazgar, Hermann Nicolai
We give a general definition of the conformal anomaly for theories that are not classically Weyl invariant and show that this definition yields a quantity that is both finite and l…
Subleading BMS charges and fake news near null infinity
Hadi Godazgar, Mahdi Godazgar, C. N. Pope
In this paper we establish a relation between the non-linearly conserved Newman-Penrose charges and certain subleading terms in a large- expansion of the BMS charges in an asymp…
A rederivation of the conformal anomaly for spin-1/2
Hadi Godazgar, Hermann Nicolai
We rederive the conformal anomaly for spin-1/2 fermions by a genuine Feynman graph calculation, which has not been available so far. Although our calculation merely confirms a resu…