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117 papers · 1 filter
Null fluid/gravity correspondence
Jay Armas, Emil Have, Gianbattista-Piero Nicosia
We construct a new class of perturbative asymptotically Anti-de Sitter pp-wave spacetimes by performing a long-wavelength expansion of Kaigorodov metrics in arbitrary spacetime dim…
The gravitational Compton amplitude from flat and curved spacetimes at second post-Minkowskian order
N. Emil J. Bjerrum-Bohr, Gang Chen, Carl Jordan Eriksen +1
We utilize various computational techniques in flat and curved backgrounds to calculate the classical gravitational Compton amplitude up to the second post-Minkowskian order. Our n…
Observables and Unconstrained Spin Tensor Dynamics in General Relativity from Scattering Amplitudes
Mark Alaverdian, Zvi Bern, Dimitrios Kosmopoulos +4
In a previous Letter, we showed that physical scattering observables for compact spinning objects in general relativity can depend on additional degrees of freedom in the spin tens…
Conformal Mapping of Non-Lorentzian Geometries in SU(1,2) Conformal Field Theory
Stefano Baiguera, Troels Harmark, Yang Lei +1
We realize an explicit conformal mapping between the state and operator pictures in a class of (2+1)-dimensional non-Lorentzian field theories with SU(1,2)U(1) conformal sy…
New asymptotically (Anti)-de Sitter black holes in (super)gravity
Jay Armas, Gianbattista-Piero Nicosia
We use the duality between gravitational dynamics and fluids living on dynamical surfaces carrying multiple charges, known as the blackfold approach, to perturbativaly construct ne…
Color-Kinematic Numerators for Fermion Compton Amplitudes
N. Emil J. Bjerrum-Bohr, Gang Chen, Yuchan Miao +1
We introduce a novel approach to compute Compton amplitudes involving a fermion pair inspired by Hopf algebra amplitude constructions. This approach features a recursive relation e…