Format results
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Antipodal (Self-)Duality in Planar N=4 Super-Yang-Mills Theory
Lance Dixon - Stanford University
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Symmetry Lost and Found
Shu-Heng Shao - Stony Brook University
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Large N von Neumann algebras and the renormalization of Newton’s constant
Elliott Gesteau - California Institute of Technology (Caltech)
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Where is M-theory?
Andrea Guerrieri - European Organization for Nuclear Research (CERN)
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Celestial Locality and the Jacobi Identity
Adam Ball - Brown University
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Microstates of the 2d Non-Supersymmetric Black Hole
Ronak Soni - University of Cambridge
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Back to Heterotic Strings on ALE Spaces
Michele Del Zotto - Uppsala University
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Reparametrization mode and chaos on the worldsheet
Shota Komatsu - Princeton University
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Deriving the Simplest Gauge-String Duality
Rajesh Gopakumar - International Centre for Theoretical Sciences (ICTS)
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Non-Invertible Theta Symmetries
Lakshya Bhardwaj - Harvard University
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Complex Spin: The Missing Zeroes and Newton’s Dark Magic
Alexandre Homrich - University of California, Santa Barbara
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Antipodal (Self-)Duality in Planar N=4 Super-Yang-Mills Theory
Lance Dixon - Stanford University
Scattering amplitudes are where quantum field theory directly meets collider experiments. An excellent model for scattering in QCD is provided by N=4 super-Yang-Mills theory, particularly in the planar limit of a large number of colors, where the theory becomes integrable. The first nontrivial… -
Symmetry Lost and Found
Shu-Heng Shao - Stony Brook University
In massless QED, we find that the classical U(1) axial symmetry is not completely broken by the Adler-Bell-Jackiw anomaly. Rather, it is resurrected as a generalized global symmetry labeled by the rational numbers. Intuitively, this new global symmetry in QED is a composition of the naive axial… -
Large N von Neumann algebras and the renormalization of Newton’s constant
Elliott Gesteau - California Institute of Technology (Caltech)
In holography, the quantum extremal surface formula relates the entropy of a boundary state to the sum of two terms: the area term and the entropy of bulk fields inside the entanglement wedge. As the bulk effective field theory suffers from UV divergences, the second term must be regularized. It has… -
Where is M-theory?
Andrea Guerrieri - European Organization for Nuclear Research (CERN)
I will use the S-matrix Bootstrap to carve out the space of unitary, crossing symmetric, and supersymmetric graviton scattering amplitudes in nine, ten, and eleven dimensions. I will introduce a novel extension of positivity for massless particles beyond the forward limit called “positivity in the… -
Celestial Locality and the Jacobi Identity
Adam Ball - Brown University
In this talk I will show the equivalence of several different tests of the Jacobi identity for celestial currents at tree level, in particular finding a simple, practical condition on hard momentum space 4-point amplitudes in any EFT. Along the way I will clarify the role of the order of soft and… -
Microstates of the 2d Non-Supersymmetric Black Hole
Ronak Soni - University of Cambridge
We identify the microstates of the non–supersymmetric, asymptotically flat 2$d$ black hole in the dual $c=1$ matrix quantum mechanics (MQM). We calculate the partition function of the theory using Hamiltonian methods and reproduce one of two conflicting results found by Kazakov and Tseytlin. We find… -
Back to Heterotic Strings on ALE Spaces
Michele Del Zotto - Uppsala University
I will revisit the physics of Heterotic Strings on four-dimensional ADE singularities in light of recent progress in the context of higher global symmetries combined with our improved understanding of 6d SCFTs over the past decade. In particular, on ADE singularities the fractional heterotic little… -
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Reparametrization mode and chaos on the worldsheet
Shota Komatsu - Princeton University
The path integral over reparametrization modes in one dimension played an important role in the duality between JT gravity and the SYK model. In this talk, I will explain that the reparametrization modes are important also in certain computations involving the string worldsheet with boundaries. A… -
Deriving the Simplest Gauge-String Duality
Rajesh Gopakumar - International Centre for Theoretical Sciences (ICTS)
The simplest large N gauge theory is, arguably, the Gaussian matrix (or more generally, one hermitian matrix) integral. We will explicitly show that arbitrary correlators of single trace operators in this theory (without any double scaling limit) are identical to corresponding physical correlators… -
Non-Invertible Theta Symmetries
Lakshya Bhardwaj - Harvard University
The modern point of view is that the global symmetries of a quantum field theory are described by topological defects/operators of the theory. In general such symmetries are non-invertible, i.e. the associated topological defects do not admit an inverse under fusion. I will describe a general… -
Complex Spin: The Missing Zeroes and Newton’s Dark Magic
Alexandre Homrich - University of California, Santa Barbara
Conformal Regge theory predicts the existence of analytically continued CFT data for complex spin. How could this work when there are so many more local operators with large spin compared to small spin? Using planar N=4 SYM as a testground we find a simple physical picture. Local operators do…