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 | Technical Talk | Technical Talk | Technical Talk | All Lambdas Discussion |
| 12:45-14:45 | Lunch | End of workshop | ||
| 14:45-15:30 | Umut Gürsoy Memorial | Discussion | Discussion | |
| 15:30-16:30 | Technical Talk | Technical Talk | Technical Talk | |
| 16:30-17:00 | Break | |||
| 17:00-18:00 | Discussion | GONG SHOW | Discussion | |
| Free time | ||||
| SPEAKER | INSTITUTE | TOPIC |
|---|---|---|
| Dionysios Anninos (TBC) | 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 |
|---|---|---|
| Andrea Campoleoni | UMONS |
Flat Technical
Abstract
|
Vasileios A. Letsios | UMONS |
dS Technical
Abstract
|
| Enrico Pajer | Cambridge, DAMPT |
dS Technical
Abstract
|
| Olga Papadoulaki | Ecole Polytechnique |
AdS Technical
Abstract
|
| Jakob Salzer | ULB and International Solvay Institutes |
Flat Technical
Abstract
|
| CONVENER | INSTITUTE | TOPIC |
|---|---|---|
| Kamran Salehi Vaziri | University of Amsterdam |
Perturbative and non-perturbative QFT in de Sitter
Abstract
|
| Panos Betzios | Ghent University |
Microscopic models of Cosmology
Abstract
|
| 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.
|
| 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
|
| Akash Singh | IISER Mohali |
Competing Condensates in Holography
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
|
| Paolo Pergola | University of Naples Federico II |
Spinning Celestial Mellin Amplitudes
Abstract
|
| NAME | INSTITUTE |
|---|---|
| Joris Raeymaekers | CEICO |
| Gizem Şengör | Boğaziçi University |
| Gideon Vos | KIAS |
| Tomas Prochazka | CEICO |
| Constantinos Skordis | CEICO |
One of the closest hotels to the workshop venue is Küçüksu Öğretmenler Evi (Teachers House). The prices would be the ones listed under "sivil" which means without the teacher or government worker reduction.
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, |