Format results
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TBA
Zohar Komargodski - Stony Brook University
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Equivalence of 1-loop RG flows in 4d Chern-Simons and integrable 2d sigma-models
Nat Levine - École Normale Supérieure - PSL
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Loop-corrected soft photon theorems and large gauge transformations
Sangmin Choi - University of Amsterdam
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Carrollian c-functions and flat space holographic RG flows
Daniel Grumiller - Technische Universität Wien
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TBA
Leonardo Rastelli - Stony Brook University
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Analyticity properties of 2d Ising Field Theories
Hao-Lan Xu - Stony Brook University
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Quantization via SQFT
Davide Gaiotto - Perimeter Institute for Theoretical Physics
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Scattering Amplitudes and Tilings of Moduli Spaces
Nick Early - Max Planck Institute for Mathematics in the Sciences
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Asymptotic entanglement and celestial holography
Hong Zhe (Vincent) Chen - University of California, Santa Barbara
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A holographic effective field theory for a strongly coupled metal with a Fermi surface
Dominic Else - Perimeter Institute for Theoretical Physics
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BPS quiver algebras and their applications
Wei Li - Boston University
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TBA
Zohar Komargodski - Stony Brook University
Abstract TBA --- Zoom link https://pitp.zoom.us/j/97897878725?pwd=dHZNUEc5cVlkU2ZNdU14bEhIRmFPZz09 -
Equivalence of 1-loop RG flows in 4d Chern-Simons and integrable 2d sigma-models
Nat Levine - École Normale Supérieure - PSL
Costello, Witten and Yamazaki proposed a 4d Chern-Simons theory as a unified way to engineer integrable models. In the presence of 'Disorder' defects (for non-ultralocal 2d theories), this correspondence has been established only classically. As a first quantum check, I will derive the matching of 1… -
Loop-corrected soft photon theorems and large gauge transformations
Sangmin Choi - University of Amsterdam
In the last few years, a remarkable link has been established between the soft theorems and asymptotic symmetries of quantum field theories: soft theorems are Ward identities of the asymptotic symmetry generators. In quantum electrodynamics, Weinberg's soft photon theorem is nothing but the Ward… -
Carrollian c-functions and flat space holographic RG flows
Daniel Grumiller - Technische Universität Wien
We discuss c-functions and their holographic counterpart for 2d field theories with Carrollian conformal fixed points in the UV and the IR, and construct asymptotically flat domain wall solutions of 3d Einstein-dilaton gravity that model holographic RG flows. arXiv: 2309.11539 --- Zoom link https:/… -
TBA
Leonardo Rastelli - Stony Brook University
Abstract TBA --- Zoom link: https://pitp.zoom.us/j/97133792880?pwd=d1pxMThTd1R3YjZUVENiOWRLOUZpZz09 -
Analyticity properties of 2d Ising Field Theories
Hao-Lan Xu - Stony Brook University
In this talk, I will discuss the analyticity properties of 2d Ising field theories (IFTs). I will start with a short introduction to 2d Ising field theory, which is the continuous limit of the 2d Ising model on square lattice. Then the different spectrum scenarios for high-T and low-T domains will… -
Quantization via SQFT
Davide Gaiotto - Perimeter Institute for Theoretical Physics
I will review how protected correlation functions in certain SQFTs can be used to ``quantize'' phase spaces built from their spaces of vacua. --- Zoom link https://pitp.zoom.us/j/96543843231?pwd=U0d5d3EvVXJGT0VzR2JYUzBQVGJlUT09 -
Scattering Amplitudes and Tilings of Moduli Spaces
Nick Early - Max Planck Institute for Mathematics in the Sciences
In 2013, Cachazo, He and Yuan discovered a remarkable framework for scattering amplitudes in Quantum Field Theory (QFT) which mixes the real, complex and tropical geometry associated to the moduli space of n points on the projective line, $M_{0,n}$. By duality, this moduli space has a twin moduli… -
Asymptotic entanglement and celestial holography
Hong Zhe (Vincent) Chen - University of California, Santa Barbara
While entanglement has been examined extensively in AdS/CFT, it has avoided significant attention in the study of celestial holography and asymptotic symmetries relevant to asymptotically flat spacetime. I will present work that considers the entanglement of a Milne patch for Maxwell theory in… -
A holographic effective field theory for a strongly coupled metal with a Fermi surface
Dominic Else - Perimeter Institute for Theoretical Physics
The holographic duality between strongly coupled quantum field theories and weakly coupled gravitational theories in one higher dimension holds, in principle, the promise of understanding strongly coupled systems that occur in condensed matter physics, such as the "strange" metals that appear in… -
The few things we know, and some things that we are trying to understand about Higgs field spaces
It has long been known in studies of Pion physics, non-linear sigma models and cosmology that thinking in terms of field space metrics can be useful. Such an approach can help identify and define field redefinition invariant physics in observables. This approach is reemerging recently an a key… -
BPS quiver algebras and their applications
Wei Li - Boston University
For a theory whose half-BPS sector can be described by N=4 quiver quantum mechanics, its BPS algebra (à la Harvey-Moore) is given by the quiver Yangian. I will first review the construction of the BPS quiver Yangians and then discuss their applications, such as on BPS counting, Gauge/Bethe…