374 citations · 2.5k across the 52 of their papers we have counts for
53 papers
Single-Minus Graviton Amplitudes from Matrix Theory
Alfredo Guevara, Alexandru Lupsasca, Juan Maldacena +1
The -point single-minus graviton amplitudes are nonzero in a special kinematic region that preserves some supersymmetry when embedded in supergravity. We compute these amplitude…
Black Hole Polarimetry: Universal Polarization of Synchrotron Radiation at the Horizon
Andrew Chael, Alexandru Lupsasca, George N. Wong +2
Polarized images of a black hole encode the direction of electromagnetic energy flow near its event horizon. Measuring polarization from near-horizon emission can help determine wh…
Chaos and fractals of the black hole photon ring
Roman Berens, Peter Galison, Trevor Gravely +2
The photon ring of a Kerr black hole decomposes into a self-similar hierarchy of subrings. Here, we show that this self-similar structure persists in phase space. Moreover, near th…
Single-minus graviton tree amplitudes are nonzero
Alfredo Guevara, Alexandru Lupsasca, David Skinner +2
Single-minus tree-level -graviton scattering amplitudes are revisited. Often presumed to vanish, they are shown here to be nonvanishing for certain "half-collinear" configuratio…
Single-minus gluon tree amplitudes are nonzero
Alfredo Guevara, Alexandru Lupsasca, David Skinner +2
Single-minus tree-level -gluon scattering amplitudes are reconsidered. Often presumed to vanish, they are shown here to be nonvanishing for certain "half-collinear" configuratio…
Black Hole Vision: An Interactive iOS Application for Visualizing Black Holes
Roman Berens, Dominic O. Chang, Trevor Gravely +1
The Black Hole Explorer (BHEX) is a proposed mission to launch a sub-millimeter radio telescope into Earth orbit that will take the sharpest images in the history of astronomy and…