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EUROSTRINGS 2026 - COST Action Theory-Challenges General Meeting

from Monday, 4 May 2026 (08:30) to Thursday, 7 May 2026 (21:00)
National and Kapodistrian University of Athens

        : Sessions
    /     : Talks
        : Breaks
4 May 2026
5 May 2026
6 May 2026
7 May 2026
AM
08:30 --- Registration ---
09:00
Plenary Session (until 13:00)
09:00 Welcome  
09:10 Neural Spectral Bias and Conformal Correlators - Andreas Stergiou (King's College London)  
10:00 A 2d/2d unitary/non-unitary correspondence - Gabi Zafrir (University of Haifa)  
10:50 --- Coffee Break ---
11:20 Integrability beyond AdS and elastic scattering - Sibylle Driezen (ETH Zurich)  
12:10 Cusped Impurities: From Casimir Energy to Sudakov Radiation - Gabriel Francisco Cuomo (SISSA)  
09:00
Plenary Session (until 13:00)
09:00 Equivariant localization and extremization in supergravity - Dario Martelli (Università di Torino and INFN Torino)  
09:50 No Shift, Sherlock - Shota Komatsu (CERN)  
10:40 --- Coffee Break ---
11:20 BMS particles - Laura Donnay (SISSA)  
12:10 Quantum Obstructions to Classical Weak Coupling Limits in 4d N=1 Theories of Gravity - Max Wiesner  
09:00
Plenary Session (until 13:00)
09:00 Wormholes and an imaginary distance bound - Juan Maldacena  
09:50 Variations on a Theme of Krylov - Pawel Caputa (Stockholm University)  
10:40 --- Coffee Break ---
11:20 Calabi-Yau Periods in Particle and Gravitational Physics - Christoph Nega (TUM)  
12:10 Conformal Collider Bootstrap in N=4 SYM - Zahra Zahraee  
09:00
Plenary Session (until 13:15)
09:00 Thermodynamics of near extremal Kerr and warped AdS3 black holes - Chiara Toldo  
09:50 Supersymmetric observables from equivariant volumes - Kiril Hristov (Sofia University / INRNE, BAS)  
10:40 --- Coffee Break ---
11:15 COST and GenHET networks  
11:35 Disk Operators and Symmetry Fractionalization - Konstantinos Roumpedakis (University of Crete)  
12:25 Full strong coupling expansions in supersymmetric gauge theories - Zoltán Bajnok  
PM
13:00
Lunch Break (until 14:30)
14:30
Parallel Session (until 17:00) (Amphitheatre “Georgios Karabatzos”)
14:30 On the AdS3 x S3 x S3 x S1 dressing factors - Sergey Frolov  
15:00 Positivity in energy correlators - Johan Henriksson (CERN)  
15:30 --- Coffee Break ---
16:00 Flux tube profile from Holography: finite size and strong coupling corrections - Tommaso Canneti (University of Turin, INFN Torino)  
16:30 Zooming out of AdS4×S2×S2: The Branes behind the CFT’s - Dimitrios Toulikas (Ben-Gurion University of the Negev)  
14:30
Parallel Session (until 17:00) (Lecture Room A5)
14:30 Defect RG flows in ABJM theory from weak to strong coupling - Diego Trancanelli  
15:00 Holographic superheated bubbles - Francesco Bigazzi  
15:30 --- Coffee Break ---
16:00 A domain wall bound on anti-de Sitter vacua - Antonia Paraskevopoulou  
16:30 String theory methods for defect CFTs - Georgios Linardopoulos (Shanghai Institute for Mathematics and Interdisciplinary Sciences (SIMIS))  
17:00
Poster Session (until 18:00)
18:00 --- Welcome Reception ---
13:00
Lunch Break (until 14:30)
14:30
Parallel Session (until 17:30) (Lecture Room A5)
14:30 Carrollian-holographic Derivation of Gravitational Flux-Balance Laws - Simon Alexandre Pekar (SISSA)  
15:00 Basics of Carrollian CFT - Kevin Nguyen (King's College London)  
15:30 --- Coffee Break ---
16:00 Gravitational charges and radiation in asymptotically locally de Sitter spacetimes - Aaron Poole (Kyung Hee University)  
16:30 Flat Holography & Holographic Renormalization - Federico Capone  
17:00 Gravitational Energy Detectors and Asymptotic Symmetries - Jakob Salzer (ULB)  
14:30
Parallel Session (until 17:30) (Amphitheatre “Georgios Karabatzos”)
14:30 Generalised symmetries and integrability - Marius de Leeuw  
15:00 Integrable Matrix Product States and Overlaps in AdS/CFT - Tamás Gombor (Wigner RCP)  
15:30 --- Coffee Break ---
16:00 Algebro-Geometric Bootstrapping from OPE Decoupling - Craig Lawrie  
16:30 A Bootstrap Study of Confinement in AdS - Stefanos Robert Kousvos (University of Torino and INFN Torino)  
17:00 Analytic thermal bootstrap meets holography - Deniz Bozkurt  
13:00
Lunch Break (until 14:30)
14:30
Parallel Session (until 17:35) (Amphitheatre “Georgios Karabatzos”)
14:30 Towards Quantum Black Hole Microstates - Siyul Lee  
15:00 A Reverse Black Hole Information Problem - Andrew Rolph  
15:30 --- Coffee Break ---
16:00 Localizing the action of 5D supergravity in patches - Edoardo Colombo  
16:30 A Lorentzian Path Integral for Closed Universes - David Grabovsky  
17:00 Bubbling saddles of the gravitational index - Alejandro Ruiperez  
14:30
Parallel Session (until 17:35) (Lecture Room A5)
14:30 On TQFTs and Entanglement - Michele Del Zotto (Uppsala Univeristy)  
15:00 TTbar deformed correlators through BRST symmetry - Elia de Sabbata (King's College London)  
15:30 --- Coffee Break ---
16:00 The 3d A-model and generalised symmetries - Elias Furrer (Rutgers University)  
16:30 Twisted sector correlators in N=2 orbifold theories - Torben Skrzypek (DESY Hamburg)  
17:00 On the three-point functions of N=1 Liouville CFT - Yiannis Tsiares  
19:00 --- Conference Dinner ---
13:15
Lunch Break (until 14:45)
14:45
Parallel Session (until 16:45) (Amphitheatre “Georgios Karabatzos”)
14:45 A New Superstring Field Theory - Chris Hull  
15:15 The gauge invariant symplectic structure of Yang-Mills theory - Måns Henningson  
15:45 --- Coffee Break ---
16:15 Towards generalised topological string theory - Alex S Arvanitakis (Rudjer Boskovic Institute, Zagreb)  
14:45
Parallel Session (until 16:45) (Lecture Room A5)
14:45 On hidden SU(8) symmetry of linearized ten dimensional type II supergravity and superamplitudes - Igor Bandos (IKERBASQUE Basque Fondation for Science (ES))  
15:15 Type II embeddings for d=6 Einstein-Maxwell gauged supergravity - Niall Macpherson (Oviedo University)  
15:45 --- Coffee Break ---
16:15 T-Duality Covariance in Supergravity Beyond α'^2 - Falk Hassler (University of Wrocław)  
19:00
Public Talk - Juan Maldacena (until 21:00)