16-19 September 2025
Istanbul, Turkey
This workshop will explore recent developments in holographic duality, ranging from the original AdS/CFT correspondence to ongoing efforts in extending holography to flat and de Sitter spacetimes. The event aims to bring together leading experts, early-career researchers, and students to foster discussion and collaboration, with the goal of deepening our understanding of holography across diverse settings. The program will feature a balanced mix of pedagogical review lectures, in-depth technical talks, interactive discussion sessions, and a gong show.
| Tuesday 16th September |
Wednesday 17th September |
Thursday 18th September |
Friday 19th September |
|
|---|---|---|---|---|
| 9:00 - 9:55 | Registration | |||
| 9:55 - 10:00 | Opening | |||
| 10:00-11:15 | Review | Review | Review | Review |
| 11:15-11:45 | Break | |||
| 11:45-12:45 | Discussion | Technical Talk | Technical Talk | Technical Talk |
| 12:45-14:45 | Lunch | |||
| 14:45-15:30 | Technical Talk | Technical Talk | Technical Talk | Umut Gürsoy Memorial |
| 15:30-16:30 | Discussion | GONG SHOW | GONG SHOW | All Lambdas Discussion |
| 16:30-17:00 | Boat Ride | Break | End of workshop | |
| 17:00-18:00 | Discussion | Discussion | ||
| SPEAKER | INSTITUTE | TOPIC |
|---|---|---|
| Dionysios Anninos | King's College London |
dS Review
Abstract
|
| Shiraz Minwalla | Tata Institute |
AdS Review
Abstract
|
| Romain Ruzziconi | Oxford University |
Flat review
Abstract
|
| Kostas Skenderis | University of Southampton |
All Λ Review
Abstract
|
| SPEAKER | INSTITUTE | TOPIC |
|---|---|---|
| Panos Betzios | Ghent University |
AdS Technical
Microscopic models of Cosmology
|
| Andrea Campoleoni | UMONS |
Flat Technical
Abstract
|
Vasileios A. Letsios | UMONS |
dS Technical
Abstract
|
| Olga Papadoulaki | Ecole Polytechnique |
AdS Technical
Abstract
|
| Jakob Salzer | ULB and International Solvay Institutes |
Flat Technical
Abstract
|
| Kamran Salehi Vaziri | University of Amsterdam |
dS Technical
Non-perturbative construction of the de Sitter boundary
|
| CONVENER | INSTITUTE | TOPIC |
|---|---|---|
| Lorenzo Iacobacci | The Galileo Galilei Institute For Theoretical Physics |
Celestial holography from EAdS space
We analyse the framework of Celestial holography through the lens of group theory,
developing a systematic approach based on Euclidean AdS correlators as fundamental
building blocks. These correlators are intrinsically tied to a non-flat foliation of
Minkowski spacetime—referred to as the hyperbolic foliation—in which the spacetime is
foliated into Euclidean AdS (EAdS) slices inside the light cone and dS slices outside.
Employing this foliation, we demonstrate that each contribution to massive Celestial
correlators can be reformulated as a linear combination of contributions to corresponding
massive Witten correlators in EAdS. We explicitly establish this result for both contact
diagrams and the four-point exchange diagram in Celestial holography, and it potentially
extends to all orders in perturbation theory by leveraging the bootstrapping properties
of the Celestial CFT.
|
| Riccardo Ciccone | University of Haifa |
QFT in AdS
Putting strongly coupled Quantum Field Theories on a rigid Anti-de Sitter background can provide considerable advantages with respect to flat space, a feature first realized by Callan and Wilczek (1989). Such background cures infrared divergences in a way that does not forbid spontaneous symmetry breaking or phase transitions. Moreover, it contains as a natural subsector asymptotic observables which behave like correlators in a conformal theory. The latter feature provides powerful tools to analyze such theories. In this discussion session, I will review this construction and apply it to the foremost example of strongly coupled theories, that is Yang-Mills theories in four spacetime dimensions, both without and with matter. Such approach allows to study the problem of confinement in a more controlled scenario, phrasing it as statement about the (non) existence of certain boundary conditions in the flat space limit. We will also discuss the implications for the endpoint of the conformal window in the presence of matter.
|
| SPEAKER | INSTITUTE | TOPIC |
|---|---|---|
| Silvia Georgescu | King's College London |
Non-linear asymptotic symmetries in warped AdS3 holography
Abstract
|
| Samuel Paul Brian | King's College London |
Features of the Partition Function of a Λ > 0 Universe
Abstract
|
| Arvind Shekar | University of Southampton |
Momentum space Carrollian correlators and Carrollian dual to massive flat scattering
Abstract
|
| Radu Moga | University of Southampton |
Spin-1 Fields in AdS
Abstract
|
| Safae Tariq | Mohammed V University |
Reconstruction of Bulk Operators via Petz Map
Abstract
|
| Altay Etkin | University of Southampton |
Unimodular Jackiw-Teitelboim gravity and de Sitter quantum cosmology
Abstract
|
| Stavros Christodoulou | University of Cyprus |
Subleading soft dressings of asymptotic states in explicit QED processes
Abstract
|
| NAME | INSTITUTE |
|---|---|
| Ravi Singh | IIT-ISM Dhanbad |
| Mohamed amin Rbah | University Mohamed v Rabat |
| Mohamed Ali Seridi | Constantine Mentouri University |
| Silvia Georgescu | King's College London |
| Kamran Salehi Vaziri | University of Amsterdam |
| Loukas Grimanellis | Ruđer Bošković Institute |
| Emine Seyma Kutluk | Scuola Normale Superiore |
| Lorenzo Iacobacci | The Galileo Galilei Institute For Theoretical Physics |
| Panos Betzios | Ghent University |
| Romain Ruzziconi | University of Oxford |
| Tomáš Procházka | CEICO - FZÚ |
| Joris Raeymaekers | CEICO - FZÚ |
| Rajat Raj | TIFR |
| Umut Can Akça | Bogazici University |
| Mustafa Mullahasanoglu | Bogazici University |
| Samuel Paul Brian | King's College London |
| Arvind Shekar | University of Southampton |
| Akash Singh | IISER Mohali |
| Radu Moga | University of Southampton |
| Roza Mercan Eskin | Istanbul Technical University |
| İsmail Deniz Gün | Boğaziçi University |
| Dharil Shah | Ludwig Maximilian University of Munich |
| Safae Tariq | Mohammed V University |
| Altay Etkin | University of Southampton |
| Eren Akdeniz | odtü |
| Başar Deniz Sevinç | Bologna University |
| Weam Abou Hamdan | King's College London |
| Mohammed Charkaoui | Faculty of Sciences, Mohammed V university, Rabat |
| Ashik H | ICTS-TIFR |
| Sylvain Thomée | University of Mons |
| Saikat Ghosh | International Center for Theoretical Sciences Bengaluru |
| Çağdaş Ulus Ağca | Middle East Technical University |
| Fabrizio Aramini | SISSA |
| Vatsal - | University of Cambridge |
| Pietro Moroni | SISSA (Scuola Internazionale Superiore di Studi Avanzati) |
| Arpan Kundu | The Institute of Mathematical Sciences |
| Elif Büşra Güraksın | Boğaziçi Üniversitesi |
| Andrea De Marco | FZU - Prague |
| Paolo Rossi | CEICO |
| Manizheh Botshekananfard | Boğaziçi University |
| Marzieh Shekari Tousi | University of Tehran |
| Narmin Nasibova | Physics Institute of Ministry of Science and Education of Azerbaijan |
| Pushkar Soni | Indian Institute of technology Kanpur |
| Meysam Hassandoust | Sharif University of Technology |
| Arundhati Goldar | Indian Institute of Technology Mandi, India |
| Sami Mezal Almohammad | University of Thi-Qar |
| Deep Mazumdar | Indian Institute of Science Education and Research, Pune |
| Riccardo Ciccone | University of Haifa |
| Stavros Christodoulou | University of Cyprus |
| Emir Baysazan | Istanbul Technical University |
| Sagnik Misra | NISER,Bhubaneshwar |
| Matheus da Luz Cravo | Institute of Theoretical Physics (IFT-UNESP) |
| Rohit Bhattarai | Tribhuvan University, Nepal |
Feza Gürsey Center is about 10 minutes by bus from Küçüksu, the line is 14R and the first stop is next to the Küçüksu Teachers house, across from the Küçüksu Pier. The link for the timetable for the bus can be found here.
One can also look for places from where you can reach "Küçüksu" or "Anadoluhisarı" piers by boats. From "Aşiyan" there is a very frequent boat line. Üsküdar center is also an option but then the commute will involve 2 boat rides before the bus ride. It may be easier to find more hotels or options on Airbnb around these locations. The official webpage for the boat lines is here.
| TÜBİTAK BİDEB 2232-B 121C138, TÜBİTAK ARDEB UPAG 1071 123N952, |