76 citations · 145 across the 13 of their papers we have counts for
15 papers
The Conformal -Algebra
Simon Heuveline, Nia Robles Del Pino, Andrew Strominger
Einstein gravity in four asymptotically flat dimensions is governed by a tower of soft theorems obeying an commutator algebra. This algebra is deformed to…
Self-Dual Yang-Mills in AdS
Simon Heuveline, Romain Ruzziconi, Ahmed Sheta +1
Quantum Yang-Mills theory in Euclidean AdS with Neumann boundary conditions is studied as a function of the complex couplings $\frac{1}{g_\pm^2} \equiv \frac{1}{g^2}\mp \frac{i…
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…
Soft Algebras in AdS from Light Ray Operators in CFT
Ahmed Sheta, Andrew Strominger, Adam Tropper +1
Flat Minkowski space (M) and AdS can both be conformally mapped to the Einstein cylinder. The maps may be judiciously chosen so that some null generators of the $\mathcal{I…
Conformal Field Theory with Periodic Time
Walker Melton, Andrew Strominger
It is shown that time-ordered correlation functions of a unitary CFT in 2D Minkowski space admit a single-valued, conformally-invariant extension to the Lorentzian signature to…
Quantum Fields on Time-Periodic AdS
Walker Melton, Andrew Strominger, Tianli Wang
We consider a free complex massive scalar on the quotient spacetime AdS, which has the isometry group SO(2,2) rather than its universal cover. This problem is of int…
No-Boundary State for Klein Space
Walker Melton, Atul Sharma, Andrew Strominger +1
Analytic continuation from signature Minkowski to signature Klein space has emerged as a useful tool for the understanding of scattering amplitudes and flat space h…
Chiral Soft Algebras for Gauge Theory
Erin Crawley, Andrew Strominger, Adam Tropper
Some time ago, Seiberg and Witten solved for moduli spaces of vacua parameterized by scalar vacuum expectation values in gauge theories. More recently, new vacua as…
The Black Hole Explorer: Motivation and Vision
Michael D. Johnson, Kazunori Akiyama, Rebecca Baturin +65
We present the Black Hole Explorer (BHEX), a mission that will produce the sharpest images in the history of astronomy by extending submillimeter Very-Long-Baseline Interferometry…
A Celestial Dual for MHV Amplitudes
Walker Melton, Atul Sharma, Andrew Strominger +1
It is shown that a 2D CFT consisting of a central charge Liouville theory, a chiral level one, rank Kac-Moody algebra and a weight free fermion holographically gener…
Soft Algebras for Leaf Amplitudes
Walker Melton, Atul Sharma, Andrew Strominger
Celestial MHV amplitudes are comprised of non-distributional leaf amplitudes associated to an AdS leaf of a foliation of flat spacetime. It is shown here that the leaf amplitud…
Celestial Leaf Amplitudes
Walker Melton, Atul Sharma, Andrew Strominger
Celestial amplitudes may be decomposed as weighted integrals of AdS-Witten diagrams associated to each leaf of a hyperbolic foliation of spacetime. We show, for the Kleinian th…
Conformal Correlators on the Lorentzian Torus
Walker Melton, Atul Sharma, Andrew Strominger
The general form of a 2D conformal field theory (CFT) correlator on a Euclidean Riemann surface, Lorentzian plane or Lorentzian cylinder is well-known. This paper describes the gen…
Hyperbolic Vacua in Minkowski Space
Walker Melton, Filip Niewinski, Andrew Strominger +1
Families of Lorentz, but not Poincare, invariant vacua are constructed for a massless scalar field in 4D Minkowski space. These are generalizations of the Rindler vacuum with a lar…
Logarithmic Corrections to Kerr Thermodynamics
Daniel Kapec, Ahmed Sheta, Andrew Strominger +1
Recent work has shown that loop corrections from massless particles generate corrections to black hole entropy which dominate the thermodynamic…