| SPEAKER |
INSTITUTE |
TOPIC |
|
Monica Guica
|
IPhT Saclay
|
Irrelevant deformations and holography
Abstract
|
|
Diego Hofman
|
University of Amsterdam
|
Review of dS holography
Review of dS holography
|
|
David Kubizňák
|
Charles University
|
Closing remarks
Abstract
|
|
Hong Liu
|
MIT
|
Emergence of space and time in holography
I will first review the essential aspects of the AdS/CFT duality, with an eye toward possible generalization to flat or de Sitter spacetime. I will then discuss recent progress in understanding emergence of space, time, and causal structure in AdS from the boundary theory.
|
|
Ana-Maria Raclariu
|
University of Amsterdam
|
Progress in Flat Space Holography
Celestial holography proposes a duality between the
gravitational S-matrix and correlators in a conformal field theory
living on the celestial sphere. I will review some of the key features
of this proposal, highlighting the importance of symmetries and
discuss a few recent applications, including new insights into the
gravitational phase space, scattering in non-perturbative backgrounds,
connections to twistor theory and the flat space limit of AdS/CFT.
|
| SPEAKER |
INSTITUTE |
TOPIC |
|
Paolo Benincasa
|
Max Planck Institute, Munich
|
A Combinatorial Perspective on dS holography
The formulation of a holographic description of the physics in asymptotically de Sitter (dS) space-times would provide a microscopic theory for it. The isometries of dS have suggested to look for such a formulation in terms of a conformal field theory. However, there are several indications for which the field theory languange we are occostumed to might not be the most adecuate one, especially if we aim to have a holographic formulation which fully captures the quantum effects of dynamical gravity. In this talk, I'll present recent progress in providing a first-principle mathematical formulation for observables defined at the future boundary of dS in terms of certain polytopes. The underlying idea is that the usual principles we know or aspect to hold emerge from the mathematical principles on which they are based.
|
Andreas Blommaert
|
SISSA
|
Path integrals for DSSYK - towards deriving dS holography
I will discuss a formulation of double scaled SYK amplitudes in terms of representation theory of a quantum group, and derive from this two path integral formulations of DSSYK. One of them, the q-Schwarzian, should be viewed as the generalization of the Schwarzian description of low energy SYK. I will then present a gravitational path integral which is holographically dual to this q-Schwarzian, which I show by going through its first order gauge-theory formulation. This dilaton gravity model dual to DSSYK has regions of both AdS and dS, as anticipated by Susskind and friends. As such this system presents an opportunity to derive dS holography top-down in a UV complete model. Based on work with Thomas Mertens and Shunyu Yao which will appear soon.
|
|
Adrien Fiorucci
|
TU Vienna
|
Sourced Carrollian CFTs & Flat Space Holography
Gravity in four-dimensional asymptotically flat spacetime constitutes the archetypal example of a gravitational system with leaky boundary conditions. In this talk, I will argue that the holographic description of such a system re- quires the coupling of the dual theory living at null infinity to some external sources encoding the radiation reaching the conformal boundary and respon- sible for the non-conservation of the charges. To formalize this coupling, I will introduce a generalized concept of variational symmetries and derive related Ward identities perturbed by the presence of sources. When applied to a con- formal Carrollian field theory living at null infinity, these identities reproduce the BMS flux-balance laws. The source operators are identified with the boundary value of radiative fields in the bulk, in such a way that correlators of source op- erators holographically encode massless scattering amplitudes. Moreover, the constraints imposed on these correlators by the sourced Ward identities are actually equivalent to soft theorems. Finally, I will derive the general form of low-point correlation functions for conformal Carrollian field theories using sym- metry arguments and exhibit a new branch of distributional solutions, which is the relevant one for holographic purposes.
|
|
Damián Galante
|
King's College London
|
Holography inside the dS static patch
I will describe recent progress in trying to formulate a holographic theory inside the static patch of dS_2 by appending it to an AdS boundary. In this way, I can cover 2/3 of the workshop. I will describe some salient features of these spacetimes and propose a microscopic dual for them in terms of particular deformations of the SYK model.
|
|
Daniel Kapec
|
Harvard
|
The Geometry of the Space of Celestial CFTs
Celestial CFT” is a formalism which attempts to recast quantum gravity in (d+2)-dimensional asymptotically flat spacetimes in terms of a d-dimensional Euclidean CFT residing at the conformal boundary. I will discuss certain universal aspects of this correspondence. As in anti-de Sitter space, bulk gravitons produce a boundary stress tensor, and bulk gluons furnish boundary conserved currents. I will also show that continuous spaces of vacua in the bulk map directly onto the conformal manifold of the boundary CFT. This correspondence provides a new perspective on the role of the BMS group in flat space holography, and offers a new interpretation of the antisymmetric double-soft gluon theorem in terms of the curvature of an infinite-dimensional vacuum manifold.
|
|
Alejandro Cabo Bizet
|
University of Salento & INFN Lecce
|
Statistical physics at large charges: lessons from AdS/CFT
Using tools from both sides of AdS/CFT, it has recently been shown that large BPS states on the CFT side of the duality can be understood as microscopic components of the large black holes in AdS5xS5 and AdS4xS7 carrying the same global charges. In this talk, I will review some of the developments that lead to these results, with an emphasis on universal lessons that may help in understanding or uncovering new features of AdS/CFT or other physical systems of interest.
|
| NAME |
INSTITUTE |
| Dionysios Anninos | King’s College London |
| Cynthia Arias | Charles University |
| Jose Barrientos | Institute of Mathematics, CAS |
| Paolo Benincasa | Max-Planck-Institut für Physik |
| Andreas Blommaert | SISSA |
| Alejandro Cabo Bizet | University of Salento & INFN Lecce |
| Adolfo Cisterna | Institute of Mathematics of the Czech Academy of Sciences |
| Felipe Diaz | Univesidad Andres Bello |
| Adrien Fiorucci | Technische Universität Wien |
| Damian Galante | King's College London |
| Dražen Glavan | CEICO, FZU |
| Monica Guica | IPhT, CEA/Saclay |
| Diego Hofman | University of Amstertdam |
| Sk Jahanur Hoque | Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University |
| Daniel Kapec | Harvard University |
| Jani Kastikainen | APC, Université Paris Cité |
| David Kubiznak | Charles University |
| Hong Liu | MIT |
| Anna Morozova | FZU |
| Ruggero Noris | CEICO, Institute of Physics of the Czech Academy of Sciences |
| Valentin NOURRY | APC, Université Paris Cité |
| Simon Pekar | University of Mons |
| Tomáš Procházka | Institute of Physics of the Czech Academy of Sciences |
| Ana Raclariu | University of Amsterdam |
| Joris Raeymaekers | Ceico, Prague |
| Paolo Rossi | CEICO - Charles University |
| Canberk Sanli | CEICO |
| Ashish Shukla | Ecole Polytechnique |
| Constantinos Skordis | CEiCO - FZU, Institute of Physics of the Czech Academy of Sciences |
| Georg Stettinger | Prague Academy of Science |
| Gizem Şengör | Boğaziçi University |
| Tayebeh Tahamtan | ITP, Charles University |
| Georg Trenkler | CEICO |
| Jaroslav Trnka | UC Davis & Charles University |
| Samuel Valach | Trinity College Dublin |
| Petr Vasko | Charles University |
| David Vegh | Queen Mary University of London |
| Matthieu Vilatte | Ecole Polytechnique de Paris |
| Gideon Vos | CEICO |
| NAME |
INSTITUTE |
| Mohamed Abdulazeem | Sohag University |
| Mir Afrasiar | IIT Kanpur |
| Evangelos Afxonidis | University of Oviedo |
| Shabeeb Alalawi | kfupm |
| Gabriel Arenas-Henriquez | Durham University |
| Sourish Banerjee Banerjee | BITS Pilani K K Birla Goa Campus |
| Debarshi Basu | Indian Institute of Technology Kanpur |
| Klaus Bering | Masaryk U |
| Somdatta Bhattacharya | unaffiliated |
| Swastik Bhattacharya | BITS-Pilani Hyderabad Campus |
| James Bonifacio | University of Mississippi |
| Manizheh Botshekananfard | Boğaziçi University |
| Bruno Bucciotti | Scuola Normale Superiore, Pisa |
| Ayan Chatterjee | Central University of Himachal Pradesh |
| Mario Cretì | Unisalento |
| Arnaud Delfante | University of Mons |
| Ceren A Deral | Bogazici University |
| Sarthak Duary | International Centre for Theoretical Sciences, Bangalore |
| Wanxiang Fan | University of Southampton |
| Silvia Georgescu | IPhT Saclay and CPHT, Ecole polytechnique |
| Jewel Ghosh | Independent University, Bangladesh (IUB) |
| Nishant Gupta | Institute of Mathematical Sciences, Chennai |
| Jan Hladík | Institute of Physics in Opava, Silesian University in Opava |
| Krishna Jalan | IMSc, Chennai, India |
| Alexandros Kanargias | University of Mainz, Germany |
| Maria Knysh | Vrije Universiteit Brussel |
| SHIVAM KUSHWAH | IIT ROORKEE |
| Emine Şeyma Kutluk | İstanbul Technical University |
| Pan Li | Institute of High Energy Physics of Chinese Academy of Sciences |
| stefano lionetti | Unisalento |
| Daniel Logares | Oviedo University |
| Kevin Loo | Tsinghua University |
| Dario Melle | Unisalento |
| Delaram Mirfendereski | University of Rio Grande Valley |
| Sukrut Mondkar | Indian Institute of Technology Madras |
| Sameer Murthy | King's College London |
| Pratik Nandy | YITP, Kyoto |
| Mrityunjay Nath | IIT Indore |
| Vijay Nenmeli | University of Cambridge |
| Sergei Ovchinnikov | University of Edinburgh |
| Kuntal Pal | Indian Institute of Technology Kanpur |
| Kunal Pal | Indian Institute of Technology Kanpur |
| Himanshu Parihar | National Center for Theoretical Sciences, National Tsing Hua University, Taiwan |
| Praneet Pathak | IISER Mohali, India |
| Sivasish Paul | RKMVERI, Belur |
| Mak Pavičević | SISSA |
| Andrea Puhm | CNRS and CPHT, Ecole Polytechnique |
| Vinayak Raj | Indian Institute of Technology Kanpur |
| PABITRA RAY | International Centre for Theoretical Sciences |
| Lorenzo Rossi | Queen Mary University of London |
| Romain Ruzziconi | TU Vienna |
| Debajyoti Sarkar | IIT Indore |
| Ignacy Sawicki | CEICO, Prague |
| Sergio Ernesto Aguilar Gutierrez Sergio Ernesto Aguilar Gutierrez | KU Leuven |
| Sanjit Shashi | University of Texas, Austin |
| Rajeev Singh | Stony Brook University |
| Akash Singh | IISER Mohali (India) |
| Ryo Suzuki | Shing-Tung Yau Center of Southeast University |
| Abinash Swain | Pune University, India |
| poula tadros | Aalto university |
| Riccardo Tommasi | Università del Salento |
| Martin Vincze | Public |
| Rikard von Unge | Masaryk University |
| Gopal Yadav | Indian Institute of Technology Roorkee |
| Chen Yang | Scuola Normale Superiore |
| Utku Zorba | Boğaziçi University |
