Reconstructing the Universe
| Monday December 15, 2025 | |
|---|---|
| 09:00~09:15 | Registration |
| 09:15~09:30 | Opening (Daniel Baumann) |
| Session Chair: Tomomi Sunayama | |
| 09:30~10:00 | BAO review 1 Xinyi Chen (Ohio State University) |
| 10:00~10:15 | A Unified Tracer Analysis of DESI DR2 BAO Nick Sanders (Ohio University) |
| 10:15~10:30 | Forward-modelling Stage IV galaxy surveys for precise cosmological measurements Luca Tortorelli (LMU Munich) |
| 10:30~11:00 | Coffee Break |
| 11:00~11:30 | BAO review 2 Shi-Fan Chen (Columbia University) |
| 11:30~11:45 | Lagrangian Reconstruction Ue-Li Pen (ASIAA) |
| 11:45~12:00 | Cosmic tidal reconstruction Hongming Zhu (National Astronomical Observatories, CAS) |
| 12:00~13:30 | Lunch |
| Session Chair: Xinyi Chen | |
| 13:30~14:00 | Cosmic Cartography with Karmma Eduardo Rozo (University of Arizona) |
| 14:00~14:15 | Measuring the running of bias parameters with field level inference Hsiang-Ming Huang (Ludwig-Maximilians Universität/Max Planck Institut für Astrophysik) |
| 14:15~14:30 | Modeling the Reconstructed Field with Eulerian Perturbation Theory Elia Grilli (University of Parma) |
| 14:30~15:00 | Coffee Break |
| 15:00~15:15 | The BAO-CMB Tension and Implications for Inflation (Virtual) Elisa Ferreira (Kavli IPMU) |
| 15:15~15:30 | Reconstructing cosmological initial conditions with sparse samples Shihui Zang (University of Wisconsin - Madison) |
| 15:30~16:00 | Optimal transport reconstruction Ravi Sheth (University of Pennsylvania) |
| 16:00~17:00 | Discussion (moderator: Hee-Jong Seo) |
| 17:00 | Reception |
| Tuesday December 16, 2025 | |
| Session Chair: Hee-Jong Seo | |
| 09:30~10:00 | Near-optimal estimators for the power spectrum Kazuyuki Akitsu (High Energy Accelerator Research Organization (KEK)) |
| 10:00~10:15 | Connecting Field-level and Summary Statistics from Galaxy Clustering Ivana Nikolac (Max Planck Institute for Astrophysics) |
| 10:15~10:30 | Bayesian Field-Level Inference of Local Primordial non-Gaussianity in Galaxy Redshift Surveys Adam Andrews (INAF) |
| 10:30~11:00 | Coffee Break |
| 11:00~11:30 | Field-Level BAO Reconstruction and BAOnd Adrian Bayer (Flatiron Institute / Princeton University) |
| 11:30~11:45 | Towards field-level multi-probe analyses using differentiable hydrodynamics Tilman Troester (ETH Zurich) |
| 11:45~12:00 | Interpretation and comparison between NN and Wiener filtering reconstruction of the learby large scale structure Adi Nusser (Techion-Israel Institute of Technology) |
| 12:00~13:30 | Lunch |
| Session Chair: Teppei Okumura | |
| 13:30~14:30 | Field level inference: from weak lensing to galaxies Uros Seljak (UC Berkeley) |
| 14:30~15:00 | Coffee Break |
| 15:00~15:15 | Biased Tracer Reconstruction(Virtual) Yu Yu (Shanghai Jiao Tong University) |
| 15:15~15:30 | On the reconstruction of large-scale structure (Virtual) Xin Wang (Sun Yat-sen University) |
| 15:30~15:45 | Reconstructing the Initial Conditions from Galaxy Light Sizes Jounghun Lee (Seoul National University) |
| 15:45~16:00 | JAX-based one-loop Eulerian & Lagrangian PT code of galaxy power spectrum Yosuke Kobayashi (Kyoto Sangyo University) |
| 16:00~17:00 | Discussion (moderator: Stephen Chen/Xinyi Chen) |
| Wednesday December 17, 2025 | |
| Session Chair: Teppei Okumura | |
| 09:30~09:45 | Field-level Reconstruction from Foreground-Contaminated 21-cm Maps Shu-Fan Chen (Columbia University) |
| 09:45~10:00 | Reconstructing Initial Conditions from Pencil-Beam Galaxy Surveys Chenze Dong (Kavli IPMU) |
| 10:00~10:15 | Galaxy Spin Alignment with Reconstructed Tidal Fields in SDSS-IV MaNGA Jun-Sung Moon (ASIAA) |
| 10:15~10:30 | Improving cosmological constraints using galaxy intrinsic alignment in full-shape analysis Junsup Shim (ASIAA) |
| 10:30~11:00 | Coffee Break |
| 11:00~11:15 | Estimating non-gaussian bias using counts of tracers Neal Dalal (Perimeter Institute) |
| 11:15~11:30 | Model-independent Constraints of Physics beyond ΛCDM with the Power Spectrum and Bispectrum Giorgia Biselli (University of Parma) |
| 11:30~11:45 | Peculiar Velocity Reconstruction from Simulations and Observations Using Deep Learning Algorithms Yuyu Wang (Ohio University) |
| 11:45~12:00 | Toward Robust Cosmological Inference via Reconstruction of the Halo Clustering Ryuichiro Hada (ASIAA) |
| 12:00~13:30 | Lunch |
| Session Chair: Stephen Chen | |
| 13:30~13:45 | Full-sky Density Reconstruction in 2D and 3D Yi-Kuan Chiang (ASIAA) |
| 13:45~14:00 | Interpretable Modeling of the Initial Density Field Shunya Uchida (Nagoya University) |
| 14:00~14:15 | Fast tools for multi probe forward modelling Laura Reymond (ETH Zurich) |
| 14:15~14:30 | Multi-Probe Simulation-Based Large-Scale Structure Cosmology with non-Gaussian Statistics Jozef Bucko (ETH Zurich) |
| 14:30~15:00 | Coffee Break |
| 15:00~16:00 | Flash Talks |
| 16:00~17:00 | Discussion (moderator: Ue-Li Pen) |
| 18:00 | Banquet (曉鹿鳴樓 永續台灣功夫菜) |
| Thursday December 18, 2025 | |
| Session Chair: Yi-Kuan Chiang | |
| 09:30~10:00 | Reconstructing Dark Energy Arman Shafieloo (Korea Astronomy and Space Science Institute) |
| 10:00~10:15 | Differentiable Hydrodynamical Simulation for Galaxy - Large Scale Structure Connection Benjamin Horowitz (IPMU) |
| 10:15~10:30 | Reconstructing the Primordial Density Field with Differentiable N-body Simulations Sirawich Saranakomkoop (Nagoya University) |
| 10:30~11:00 | Coffee Break |
| 11:00~11:15 | Gravitational lensing of cosmic voids Pauline Vielzeuf (CPPM) |
| 11:15~11:30 | Enhancing simulations with deep learning Svyatoslav Trusov (IAP Paris) |
| 11:30~12:00 | Summary talk Hee-Jong Seo (Ohio University) |
| 12:00 | Closing (Ue-Li Pen) |