2026 IHES Summer School - Cosmological Correlators

Jul 6, 2026, 8:30 AM → Jul 17, 2026, 5:00 PM Europe/Paris

Le Bois-Marie

Organizing Committee: Daniel Baumann (Amsterdam and National Taiwan Univ.), Daniel Green (UC San Diego), Austin Joyce (Univ. of Chicago), Guilherme Pimentel (SNS Pisa).

Scientific Committee: Eiichiro Komatsu ((Max Planck Inst. for Astrophysics), Marilena LoVerde (Univ. of Washington), Eva Silverstein (Stanford Univ), Raman Sundrum (Univ. of Maryland).

The Summer School will be held at the Institut des Hautes Études Scientifiques (IHES) from July 6 to 17, 2026. IHES is located in Bures-sur-Yvette, south of Paris (40 minutes by train from Paris) - Access map

This school is open to everybody but intended primarily for young participants, including Ph.D. students and postdoctoral fellows. 

Deadline for applications: March 10, 2026

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2026 IHES Summer School - Cosmological Correlators

The goal of this IHES school is to prepare students to make contributions to the study of cosmological correlations, both in the early and late universe. Theoretical cosmology as a discipline is increasingly crossing traditional subfield boundaries within high-energy physics. As a result, the full spectrum of topics and expertise students require cannot be simply contained in a single course.

This school aims to fill this gap by providing a holistic viewpoint on the diverse set of topics that students need to know, with an eye towards their applications in cosmology. There has been a remarkable amount of progress in the study of cosmological quantum field theory in the last few years, and a dedicated school focused on the diverse set of skills needed to contribute is much needed.

The school will have a set of courses given by world leaders in the subject, with the first week focused on EFT and bootstrap methods to compute cosmological correlators, and the second week devoted to more advanced topics and connections at the interface of particle theory and cosmology.

Speakers:

• Dionysios Anninos (King’s College)
• Scott Dodelson (Carnegie Mellon & Chicago Univ.)
• Scott Melville (Queen Mary Univ. of London)
• Enrico Pajer (DAMTP, Cambridge Univ.)
• Claudia de Rham (Imperial College)
• Marko Simonovic (Florence Univ.)
• Charlotte Sleight (Univ. of Naples)
• Massimo Taronna (Univ. of Naples)
• Raffaele Tito D’Agnolo (IPhT CEA & ENS Paris)
• Andrew Tolley (Imperial College)
• Matias Zaldarriaga (IAS) 

 

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Mon, July 6

8:30 AM → 9:00 AM Registration and Welcome coffee

9:00 AM → 10:30 AM Introduction to Cosmological Correlators - Lecture 1

Speaker: Scott Melville (Queen Mary University of London)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM EFT of Open Systems - Lecture 1

Speaker: Enrico Pajer (DAMTP, University of Cambridge)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM EFT of Open Systems - Lecture 2

Speaker: Enrico Pajer (DAMTP, University of Cambridge)

4:00 PM → 4:20 PM Break

4:20 PM → 5:00 PM Gong Show - Students talks

5:00 PM → 6:00 PM Discussion

Tue, July 7

9:00 AM → 10:30 AM Introduction to Cosmological Correlators - Lecture 2

Speaker: Scott Melville (Queen Mary University of London)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM EFT of Open Systems - Lecture 3

Speaker: Enrico Pajer (DAMTP, University of Cambridge)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM EFT of Open Systems - Lecture 4

Speaker: Enrico Pajer (DAMTP, University of Cambridge)

4:00 PM → 4:20 PM Break

4:20 PM → 5:00 PM Gong Show - Students talks

5:00 PM → 6:00 PM Discussion

Wed, July 8

9:00 AM → 10:30 AM Introduction to Cosmological Correlators - Lecture 3

Speaker: Scott Melville (Queen Mary University of London)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM Cosmological Bootstrap - Lecture 1

Speakers: Charlotte Sleight (University of Naples), Massimo Taronna (University of Naples)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM Cosmological Bootstrap - Lecture 2

Speakers: Charlotte Sleight (University of Naples), Massimo Taronna (University of Naples)

4:00 PM → 4:20 PM Break

4:20 PM → 5:00 PM Gong Show - Students talks

5:00 PM → 6:00 PM Discussion

Thu, July 9

9:00 AM → 10:30 AM EFT of LSS - Lecture 1

Speaker: Matias Zaldarriaga (Institute for Advanced Study)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM Introduction to Cosmological Correlators - Lecture 4

Speaker: Scott Melville (Queen Mary University of London)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM Cosmological Bootstrap - Lecture 3

Speakers: Charlotte Sleight (University of Naples), Massimo Taronna (University of Naples)

4:00 PM → 4:20 PM Break

4:20 PM → 5:00 PM Gong Show - Students talks

5:00 PM → 6:00 PM Discussion

Fri, July 10

9:00 AM → 10:30 AM EFT of LSS - Lecture 2

Speaker: Matias Zaldarriaga (Institute for Advanced Study)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM Cosmological Bootstrap - Lecture 4

Speakers: Charlotte Sleight (University of Naples), Massimo Taronna (University of Naples)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM Discussion / Q&A

4:00 PM → 4:20 PM Break

4:20 PM → 5:00 PM Gong Show - Students talks

5:00 PM → 6:00 PM Discussion

Mon, July 13

9:00 AM → 10:30 AM EFT of LSS - Lecture 1

Speaker: Marko Simonovic (Florence University)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM EFT of LSS - Lecture 2

Speaker: Marko Simonovic (Florence University)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM Positivity in Cosmology - Lecture 1

Speaker: Andrew Tolley (Imperial College)

4:00 PM → 4:20 PM Break

4:20 PM → 5:50 PM Positivity in Cosmology - Lecture 2

Speaker: Andrew Tolley (Imperial College)

Wed, July 15

9:00 AM → 10:30 AM Connecting Theory to Observations - Lecture 1

Speaker: Scott Dodelson (Carnegie Mellon & Chicago Univeristy)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM Connecting Theory to Observations - Lecture 2

Speaker: Scott Dodelson (Carnegie Mellon & Chicago Univeristy)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM Positivity in Cosmology - Lecture 3

Speaker: Andrew Tolley (Imperial College)

4:00 PM → 4:20 PM Break

4:20 PM → 5:50 PM Quantum Gravity in de Sitter Space - Lecture 1

Speaker: Dionysios Anninos (King's College London)

Thu, July 16

9:00 AM → 10:30 AM Quantum Gravity in de Sitter Space - Lecture 2

Speaker: Dionysios Anninos (King's College London)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM BSM Meets Cosmological Correlators - Lecture 1

Speaker: Raffaele D'Agnolo (IPhT, CEA & ENS Paris)

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM Quantum Gravity in de Sitter Space - Lecture 3

Speaker: Dionysios Anninos (King's College London)

4:00 PM → 4:20 PM Break

4:20 PM → 5:50 PM BSM Meets Cosmological Correlators - Lecture 2

Speaker: Raffaele D'Agnolo (IPhT, CEA & ENS Paris)

Fri, July 17

9:00 AM → 10:30 AM BSM Meets Cosmological Correlators - Lecture 3

Speaker: Raffaele D'Agnolo (IPhT, CEA & ENS Paris)

10:30 AM → 10:50 AM Break

10:50 AM → 12:20 PM Discussion / Synthesis

12:20 PM → 2:30 PM Lunch

2:30 PM → 4:00 PM Closing Discussion