281 citations · 1.6k across the 22 of their papers we have counts for
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Kac-Moody symmetry in the light front of gauge theories
Hernán A. González, Oriana Labrin, Olivera Miskovic
We discuss the emergence of a new symmetry generator in a Hamiltonian realisation of four-dimensional gauge theories in the flat space foliated by retarded (advanced) time. It gene…
The (super)conformal BMS algebra
Oscar Fuentealba, Hernan A. Gonzalez, Alfredo Perez +2
The conformal extension of the BMS algebra is constructed. Apart from an infinite number of 'superdilatations,' in order to incorporate 'superspecial conformal transformation…
Loops on the Celestial Sphere
Hernan A. Gonzalez, Andrea Puhm, Francisco Rojas
We study the effect of loop corrections to conformal correlators on the celestial sphere at null infinity. We first analyze finite one-loop celestial amplitudes in pure Yang-Mills…
Flat space holography and complex SYK
Hamid Afshar, Hernan Gonzalez, Daniel Grumiller +1
We provide the first steps towards a flat space holographic correspondence in two bulk spacetime dimensions. The gravity side is described by a conformally transformed version of t…
Black hole memory effect
Laura Donnay, Gaston Giribet, Hernan A. Gonzalez +1
We compute the memory effect produced at the black hole horizon by a transient gravitational shockwave. As shown by Hawking, Perry, and Strominger (HPS) such a gravitational wave p…
Boundary theories for dilaton supergravity in 2D
Marcela Cárdenas, Oscar Fuentealba, Hernán A. González +3
The -BF formulation of dilaton supergravity in two dimensions is considered. We introduce a consistent class of asymptotic conditions preserved by the extended…