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MPI für Mathematik in den Naturwissenschaften Leipzig (Leipzig) E1 05 (Leibniz-Saal)
Universität Leipzig (Leipzig) Hörsaal für Theoretische Physik
conference
12.02.24 16.02.24

Positive Geometry in Particle Physics and Cosmology

This is the kick-off workshop for the ERC-synergy project with the same title which starts in June 2024. Lectures and discussions will explore novel mathematical structures in fundamental physics, ranging from elementary particles to the Big Bang, and revealing hidden principles beyond quantum mechanics and spacetime. We will focus on positive geometries, such as amplituhedron, and their recent applications to scattering amplitudes and cosmology. The program of the week will begin with plenary presentations by international experts, and it will conclude with shorter research talks, informal discussions, and intense working groups. To foster interactions with Leipzig University, Daniel Baumann (University of Amsterdam) will give the Physics Colloquium on Tuesday, and Nima Arkani-Hamed (IAS Princeton) will give the Felix-Klein Colloquium on Wednesday.

Limited travel funding can be provided for early-career participants such as postdoctoral researchers and PhD students. Applicants are expected to submit a brief academic CV and a motivation letter. The application for funding is included in the registration form.

The deadline for applying for funding is already closed.

Program

09:00 - 09:30 Johannes Henn (Max Planck Institute for Physics, Munich, Munich), Bernd Sturmfels (Max Planck Institute for Mathematics in the Sciences, Leipzig)
09:30 - 10:30 Marcus Spradlin (Harvard / Brown University)
Some aspects of positive particle physics
10:30 - 11:00
11:00 - 12:00 Ran Tessler (Weizmann Institute of Science)
Positivity in open Gromov-Witten theory
12:15 - 13:00 David Prinz (Max Planck Institute for Mathematics, Germany)
Renormalization of gauge theories and gravity
13:00 - 14:00
14:00 - 15:30 Simon Telen (MPI MiS, Leipzig)
Introductions
15:30 - 16:00
16:00 - 17:00 Pierre Lairez (INRIA Paris)
The 22 periods of a quartic surface
17:00 - 18:00 Matteo Parisi (Harvard University / IAS Princeton)
09:00 - 10:00 Scott Melville (Queen Mary University of London)
10:00 - 11:00 Giulio Salvatori (MPI for Physics, Munich)
A positive path from Teichmüller spaces to scattering amplitudes
11:00 - 11:30
11:30 - 12:30 Melissa Sherman-Bennett (Massachusetts Institute of Technology / UC Davis)
Cluster algebras and tilings of amplituhedra
12:30 - 12:40
12:40 - 13:30
13:30 - 14:30 Carsten Schneider (RISC, Johannes Kepler University, Linz)
Computer algebra and Feynman integrals
14:30 - 15:30 Guilherme Pimentel (Scuola Normale Pisa)
An invitation to cosmological correlators and differential equations
16:30 - 17:30
Physics Colloquium:
Daniel Baumann (University of Amsterdam, Netherlands)
Positive geometry in cosmology:
University of Leipzig, Hörsaal für Theoretische Physik, Linnéstraße 5
18:30 -
09:00 - 10:00 Sebastian Mizera (IAS Princeton)
Dos and don’ts of folding time
10:00 - 11:00 Anna-Laura Sattelberger (KTH Royal Institute of Technology)
Shift relations among Feynman integrals via s-parametric annihilators
11:00 - 11:30
11:30 - 12:30 Pierpaolo Mastrolia (University of Padua)
12:30 - 13:30
13:30 - 14:30 Saiei-Jaeyeong Matsubara-Heo (Kumamoto University)
Hypergeometric study of Feynman (Euler) integrals
14:30 - 15:30 Jaroslav Trnka (University of California, Davis, USA)
Grassmannians and non-planar graphs
15:30 - 16:00
16:00 - 16:40 Carolina Figueiredo (Princeton University, USA)
16:45 - 17:25 Claudia Fevola (Inria, France)
Landau singularities
09:00 - 09:40 Andrzej Pokraka (Brown, USA)
Cosmology meets cohomology
09:45 - 10:25 Yelena Mandelshtam (UC Berkeley, USA)
10:30 - 11:00
11:00 - 11:40 Claudia Rella (University of Geneva, Switzerland)
Resurgence and Calabi-Yau geometries
11:45 - 12:45 Enrico Pajer (University of Cambridge)
12:45 - 14:30
14:30 - 15:30 Oliver Schlotterer (Uppsala University)
Iterated integrals on Riemann surfaces of different genus
15:30 - 16:00
16:00 - 17:00
09:00 - 09:40 Carlos Rodriguez (Uppsala University, Sweden)
My favorite elliptic hypergeometric integrals
09:45 - 10:25 Evgeniya Akhmedova (Weizmann Institute of Science, Israel)
10:30 - 11:00
11:00 - 11:40 Chia-Kai Kuo (National Taiwan University, Taiwan)
Geometry of the four-point correlators
11:45 - 12:30

Participants

Daniele Agostini

Evgeniya Akhmedova

Rigers Aliaj

Dario Antolini

Daniele Artico

Jacopo Azzola

Lorenzo Baldi

Christoph Bartsch

Daniel Baumann

Kenneth Blakey

Alessio Borzì

Michael Burger

Francesco Calisto

Sérgio Carrôlo

Laura Casabella

Craig Clark

Giulio Crisanti

Henry Dakin

Elena Derunova

Karel Devriendt

Gabriele Dian

Mehregan Doroudiani

Nick Early

Burkhard Eden

Yassine El Maazouz

Nikolai Fadeev

Claudia Fevola

Carolina Figueiredo

Valentina Forini

Vincenzo Galgano

Ross Glew

Paul Görlach

Zachary Greenberg

Johannes Henn

Pengfei Huang

Claudio Iuliano

Michael Joswig

Leonie Kayser

Abhiram Kidambi

Joris Koefler

Andreas Kretschmer

Chia-Kai Kuo

Pierre Lairez

Yucong Lei

Felix Lotter

Dante Luber

Diane Maclagan

Yelena Mandelshtam

Julien Martin

Pierpaolo Mastrolia

Antonela Matijasic

Saiei-Jaeyeong Matsubara-Heo

Elia Mazzucchelli

Scott Melville

Sebastian Mizera

Enrico Pajer

Shruti Paranjape

Matteo Parisi

Niharika Paul

Dmitrii Pavlov

Anaëlle Pfister

Guilherme Pimentel

Andrzej Pokraka

Elizabeth Pratt

Rosa Preiß

David Prinz

Prashanth Raman

Bernhard Reinke

Claudia Rella

Lecheng Ren

Carlos Rodriguez

Facundo Emanuel Rost

Kamran Salehi Vaziri

Giulio Salvatori

Anna-Laura Sattelberger

Oliver Schlotterer

Carsten Schneider

Sebastian Seemann

Melissa Sherman-Bennett

Jiajun Shi

Rainer Sinn

Linus Sommer

Daniel Spitz

Marcus Spradlin

Jonah Stalknecht

Avi Steiner

Bernd Sturmfels

Máté László Telek

Simon Telen

Felix Tellander

Toni Teschke

Ran Tessler

Johannes Thürigen

Jaroslav Trnka

Tuyen Truong

Francisco Vicente Vazão

Raluca Vlad

Tom Westerdijk

Maximilian Wiesmann

Daniel Windisch

Francesca Zaffalon

Shun-Qing Zhang

YuJiao Zhu

Scientific Organizers

Johannes Henn

Max Planck Institute for Physics

Bernd Sturmfels

Max-Planck-Institut für Mathematik in den Naturwissenschaften

Administrative Contact

Mirke Olschewski

Max Planck Institute for Mathematics in the Sciences Contact via Mail