Amplitudes Meet Cosmology (2022)

Date & Time

Nima Arkani-Hamed, Institute for Advanced Study
Daniel Baumann, University of Amsterdam
John Joseph Carrasco, Institute for Theoretical Physics
Daniel Green, University of California, San Diego

Cosmology is both the source and arbiter of some of the biggest questions in physics, such as the origin and fate of space and time, as well as the nature and evolution of everything within it. Precise observations of the cosmic microwave background and the large-scale structure of the universe have recently brought these questions into sharp focus. Although there is growing evidence that the primordial fluctuations originated from quantum fluctuations during a period of inflation, the physics of inflation remains a mystery.

While there have been significant theoretical advances in our understanding of cosmological correlation functions, it remains challenging to isolate fundamental physics from these correlators. In particular, we don’t know the precise rules that cosmological correlators have to obey, so that, naively, it might seem that anything goes.

This is to be contrasted with the observation that the laws of physics are a nearly inevitable consequence of quantum mechanics and special relativity. Nowhere is this seen more clearly than in the invariant observables associated with scattering amplitudes in asymptotically flat space. If cosmology is a source of ultimate questions, scattering theory can be thought of as a source of ultimate answers. Demanding only the minimal criteria of self-consistency, scattering theory has recently discovered a variety of often radically simpler ways to frame, extract, and unify predictions from physical theories. Generalizing from the relative security of flat spacetime to confront cosmological challenges provides a spectacular opportunity to stretch the applicability and reach of the S-matrix framework’s greatest ambitions.

The 2022 Simons symposium will bring together leading researchers in scattering amplitudes, cosmology, and quantum field theory. Key discussions will include recent progress in the cosmological bootstrap, the understanding of infrared effects in cosmology, new perspectives from the celestial sphere, and lessons learned from bootstrapping in AdS/CFT. A concrete goal of this meeting is to leverage knowledge from across these communities towards insights applicable beyond the tree-level approximation.

  • Agendaplus--large


    8:30 - 9:30 PMWelcome Dinner | The Drawing Room


    7:30 - 9:45 AMBreakfast | Strathearn Restaurant
    10:00 - 11:00 AMDaniel Baumann | Cosmology Introduction
    11:00-11:30 AMBreak
    11:30 - 12:30 PMJaroslave Trnka | Amplitudes Introduction
    12:30 - 1:30 PMLunch | The American Bar
    1:30 - 4:30 PMDiscussion & Recreation*
    4:30- 5:00 PMTea
    5:00 - 6:00 PMDionysios Anninos | de Sitter Musings
    6:00 - 6:15 PMBreak
    6:15 - 7:15 PMAustin Joyce | An Invitation to the Cosmological Bootstrap
    8:00 - 9:30 PMDinner | The Glendevon Lounge


    7:30 - 9:45 AMBreakfast | Strathearn Restaurant
    10:00 - 11:00 AMDavid Skinner | Twistors, Ambitwistors and Cosmological Correlators
    11:00-11:30 AMBreak
    11:30 - 12:30 PMAndrea Puhm | Tales from the Celestial Sphere
    12:30 - 1:30 PMLunch | The American Bar
    1:30 - 4:30 PMDiscussion & Recreation*
    4:30- 5:00 PMTea
    5:00 - 5:30 PMCharlotte Sleight | From dS to AdS, and back
    5:30 - 6:00 PMMassimo Taronna | From dS to AdS, and back, continued
    6:00 - 6:15 PMBreak
    6:15 - 7:15 PMEnrico Pajer | What's next for the cosmological bootstrap?
    8:00 - 9:30 PMDinner | Birnam Brasserie


    7:30 - 9:30 AMBreakfast | Strathearn Restaurant
    10:30 - 12:00 PMGuided Hike
    12:30 - 1:30 PMLunch | The American Bar
    1:30 - 4:30 PMDiscussion & Recreation*
    4:30 - 5:00 PMTea
    5:00 - 6:00 PMArthur Lipstein | Towards a de Sitter double copy
    6:00 - 6:15 PMBreak
    6:15 - 6:45 PMSylvia Nagy | Double Copy and Cosmology
    6:45 - 7:15 PMMariana Carrillo-González | Double Copy and Cosmology beyond dS
    8:00 - 9:30 PMDinner | The Drawing Room


    7:30 - 9:45 AMBreakfast | Strathearn Restaurant
    10:00 - 11:00 AMAndrew Tolley | UV Constraints on IR Physics
    11:00-11:30 AMBreak
    11:30 - 12:00 PMGrant Remmen | Positivity, Entropy, and Weak Gravity
    12:00 - 12:30 PMGary Shiu | Amplitudes meet the Swampland
    12:30 - 1:30 PMLunch | The American Bar
    1:30 - 4:30 PMDiscussion & Recreation*
    4:30- 5:00 PMTea
    5:00 - 6:00 PMJulio Parra-Martinez | Unitarity, causality, dispersion relations, and all that...
    8:00 - 9:30 PMDinner | Dormy Clubhouse Bar & Grill


    7:30 - 9:45 AMBreakfast | Strathearn Restaurant
    8:30 - 10:00 AM COVID Testing | The Reading Room
    10:00 - 11:00 AMChia-Hsien Shen | Inflationary Adler Conditions
    11:00-11:30 AMBreak
    11:30 - 12:30 PMJohn Joseph Carrasco | Constructing Effective Predictions
    12:30 - 1:30 PMLunch | The American Bar
    1:30 - 4:30 PMDiscussion & Recreation*
    4:30- 5:00 PMTea
    5:00 - 6:00 PMDonal O'Connell | Final Discussion
    6:00 - 6:15 PMBreak
    6:15 - 7:15 PMFinal Discussion, Continued
    7:45 PM Transfer to Shooting Lodge
    8:00 - 9:30 PMDinner | Shooting Lodge

    Meeting Locations

    The Billiard Room
    Various; See Schedule
    The Billiard Room
    Front Steps of Hotel

    *Participants may explore the hotel property and its surrounding areas as well as engage in informal discussion with other participants.


    Participants will have access to a projector and screen for computer-based talks and blackboards for those who prefer to give board-based talks.

    High-speed Internet access is available.

    Wednesday Excursion

    On Wednesday symposium activities are shortened for a guided hiking tour.

    If you will participate in the hike, hiking boots or shoes appropriate for traversing rocky/wet terrain, warm clothing (e.g. a sweater), sun protection (e.g. light cap) and waterproofs (e.g. raincoat or umbrella) are strongly recommended.

    A small satchel containing a light snack and water is provided, but feel free to bring your own backpack in which to carry a camera and other items that may be useful to you.

    Dress Code

    Business casual clothing should be worn during the symposium.

    The weather can change very quickly; please bring warm-weather clothing appropriate for spring in Scotland.

  • AVplus--large
    The meeting room will be equipped with the following:

    • Lectern
    • Pointer/Advancer
    • Screen
    • Projector
    • Power
    • Computer Adapters
    • Lavalier Microphone
    • 4’x6′ whiteboards

    The meeting room will be set classroom-style with a table and power outlets for all participants.

  • Travelplus--large


    The foundation will coordinate and purchase air and train travel to the symposium. Travel specifications can be provided by clicking the registration link above.

    Participants arriving via plane will arrive via Glasgow (GLA) or Edinburgh (EDI) International Airports. Travel time between either airport and Gleneagles Hotel is approximately 60 minutes.


    The closet train station to Gleneagles Hotel is the Gleneagles Station. Travel time between the station and the hotel is approximately 5 minutes.


    Should you require a visa to travel to Scotland, please contact Meghan Fazzi for an official letter of invitation to assist in the application process. The visa approval process can last several months, especially for non-residents residing in the US wishing to travel to and return from countries outside North America. We recommend attendees begin their visa application paperwork as soon as you have registered for the symposium.

    Local Ground Transportation

    Arrival at Glasgow and Edinburgh International Airports

    All participants are required to arrive on Sunday prior to the meeting’s start and depart on Saturday. No accommodations will be made for partial participation.

    The foundation will arrange for your transfer from GLA or EDI airports to Gleneagles Hotel. After claiming your luggage at baggage claim you will proceed through customs and to the exit where a uniformed driver holding a Simons Symposia sign will greet you.

    Travel time from EDI or GLA to Gleneagles Hotel is 60 minutes.

    Arrival at Gleneagles Train Station

    The foundation will arrange for your transfer from Gleneagles train station to Gleneagles Hotel via a hotel shuttle.

    Travel time from the station to the hotel is approximately 5 minutes.

    Departure from Gleneagles Hotel

    The day prior to your departure you will receive a departure letter advising on your departure time to the airport or train station via private car. Please meet your driver in the hotel lobby ten minutes prior to your noted departure time. If for any reason your flight departure time changes, please visit the front desk to update hotel staff.

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    The Gleneagles Hotel

    Auchterarder, Perthshire
    Scotland PH3 1NF

    Check-in time is at 3:00 PM
    Check-out time is 12:00 PM

  • Mealsplus--large

    Travel Days: Meals on travel days are reimbursable by the foundation.

    Sunday Welcome Dinner: The Simons Foundation will host a welcome dinner on Sunday at 8:30 PM in The Drawing Room. All participants are expected to attend with the exception of those arriving at 10PM.

    Monday through Friday: All meals occurring during the meeting week will be covered directly by the Simons Foundation. Participants are expected to be present for all foundation-hosted meals.

    Breakfast is served starting at 7:00 AM at The Strathearn Restaurant. Tables are reserved for all symposium participants so that the group may dine together.

    Lunch is served daily for the group in The American Bar.

    Dinner is hosted around the hotel property. Locations are noted on the agenda.

  • Contactsplus--large

    Travel & Hotel Assistance

    Ovation Travel Team
    1 917 408 8384 (24 hrs.)

    Meeting Questions & Assistance

    Meghan Fazzi
    Manager, Events & Administration, MPS
    (212) 524-6080

  • Reimbursement and Participation Policyplus--large


    Any expenses not directly paid for by the Simons Foundation are subject to reimbursement based on the travel policy. Please review the policy and complete when submitting your expenses. Receipts are required for any expenses over $50 USD and are due within THIRTY DAYS (30) after the conclusion of the symposium. All expenses are reconciled through the foundation’s online reimbursement platform. Additional information regarding reimbursement is sent via email on the final day of the symposium.

    Should you have any questions, please contact Meghan Fazzi.

    Participation and Guest Policy

    By registering, you agree to participate fully in the symposium program, which begins on Sunday and concludes on Saturday. No accommodations will be made for partial attendance.

    It is the foundation’s policy to discourage spouses, families or others from joining participants during the symposium. Participants who choose to invite guests to come before or stay on after the symposium do so at their own expense. The Simons Foundation will not cover expenses associated with such extensions.

    Additional Nights

    Should you decide to extend your stay, Gleneagles Hotel will honor the conference rate for up to two nights. Any nights beyond those associated with the conference are not reimbursable by the foundation.

    If you wish to extend your stay, please contact Meghan Fazzi directly and conference rate information will be provided over email.

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