Diffusion PNCG – n° 239 – 22 juin 2022

1. Fourth French-Mexican workshop « Enjoy the Universe! » (September 27-30 in Puebla, México)
2. Workshop “Interpretable and higher-order statistics for late-time cosmology” ( 27 juin – 1 juillet 2022, IFPU, Trieste, Italy)
3. CosmoLattice School (Sept 5-8 2022, Valencia, Spain)

Envoyez svp vos propositions d’annonces à l’adresse : pncg@iap.fr
Pour vous inscrire ou gérer votre abonnement à la liste PNCG: https://listes.services.cnrs.fr/wws/info/pncg 

1. Fourth French-Mexican workshop « Enjoy the Universe! » (September 27-30 in Puebla, México)France and Mexico maintain close relationships in science and astronomy in particular. This close collaboration has led to the decision to jointly develop and operate a robotic telescope, COLIBRI, specially designed for the study of the deep sky and the transient universe, in particular in the framework of the Franco-Chinese SVOM mission. 

To formalize this partnership, France and Mexico have set up a Laboratoire International Associé (LIA)/International Research Program (IRP) named ERIDANUS. Its objective is to foster new collaborations and strengthen old ones around a number of themes, ranging from the study of exoplanets and the ISM, to the observation of the transient sky and the development of new instruments. This programme is supported by CNRS, CNES and AMU in France, and UNAM and CONACyT in Mexico.

The fourth workshop « Enjoy the Universe! » will take place on September 27-30 in Puebla, México (https://www.lia-eridanus.org/home). The discussions will address the most recent advances of COLIBRI, which is entering now in its critical phase with an installation scheduled early 2023, as well as a broadening of the science studies that can be carried out with the telescope. 

Registration is now open on the page: https://www.lia-eridanus.org/registration until August 31st. 

The workshop has funds to cover accommodation for the three nights (starting on 27 September), breakfasts, lunches, and the cultural visit to Cholula for 40 attendees. In the event that more people register, we will ask senior researchers to fund their own accommodation and meals.

Partial or total coverage of the travel of the French astronomers is also possible depending on the circumstances, with a priority given to the Phd students and postdocs (request to be submitted to stephane.basa@lam.fr and jean-luc.atteia@irap.omp.eu).Transmis par S. Basa & J.L. Atteia

2. Workshop “Interpretable and higher-order statistics for late-time cosmology” ( 27 juin – 1 juillet 2022, IFPU, Trieste, Italy)
In the last decade, the study of the large-scale structures of the universe has undergone exponential progress thanks to increasingly powerful experiments. Galaxy surveys mapping the entire sky, observing millions of bright galaxies up to high redshifts, are transforming cosmology into a data-driven, precision science.

The goal of the focus week will be to discuss higher-order summary statistics as a promising method to extract cosmological information from galaxy surveys, providing complementary information to conventional methods based on low-order correlation functions.

https://indico.sissa.it/event/77/Transmis par C. Uhlemann

3. CosmoLattice School (Sept 5-8 2022, Valencia, Spain)
This is the Second Circular about the summer school we are organising during Sept 5-8 2022 in Valencia, Spain. The school is aimed to provide a pedagogical introduction to lattice field theory techniques and their adaptation to simulate the dynamics of interacting fields in an expanding background. The lectures will serve as well as an introduction to CosmoLattice, a public code recently developed for lattice simulations of early Universe scenarios. The use of CosmoLattice as a tool to simulate scalar and gauge field non-linear dynamics in an expanding universe will be presented in full detail. Modern applications to particle-production scenarios, gravitational wave generation, non-minimally coupled scalar field dynamics, axion-like field dynamics, and maybe others, will be covered as well. 

Registration is now open until July 31st 2022, see https://indico.ific.uv.es/event/6631/

Observations: The school will he held in person, in Valencia, Spain, during 5-8 Sept 2022. In case the demand exceeds our room capacity, we will give preference to young researchers (PhD students and postdocs). There is no fee, but participants are expected to cover their own accommodation (we will provide suggestions in due time). Participants are expected to bring their own laptop.

The school is aimed to anyone who would like to learn (or simply improve their knowledge on) how to simulate in a lattice the dynamics of early Universe field theory scenarios. 

The lectures will cover:

  • Lattice field theory techniques: discretisation schemes, lattice gauge techniques, and more.
  • Numerical algorithms for differential equations: Leapfrog, Verlet, Runge-Kutta, etc
  • Overview of CosmoLattice: libraries, modularity, parallelisation, …
  • Lattice simulations of interacting fields in an expanding background:
    • Scalar field dynamics with arbitrary potentials
    • U(1) gauge theories with complex charged scalars
    • SU(2) gauge theories with doublet charged scalars
  • Modern applications to early Universe scenarios:
    • Preheating scenarios and onset of radiation domination
    • Production and evolution of gravitational waves
    • Dynamics of derivatively coupled Axion-like fields
    • Dynamics of non-minimally coupled scalar fields
    • Others, if time permits

Main lectures will be given by:

  • Daniel G. Figueroa ……….. IFIC, Valencia, Spain
  • Adrien Florio ……… Stony Brook, New York, US
  • Francisco Torrenti ………. Basel U., Switzerland

Topical lectures will be given by:

  • Jorge Baeza ………………….. IFIC, Valencia, Spain
  • Joanes Lizarraga ……… UPV/EHU, Bilbao, Spain
  • Nicolas Loayza ……………… IFIC, Valencia, Spain
  • Toby Opferkuch ………… Berkeley, California, US
  • Ben A. Stefanek …………… Zurich U., Switzerland
  • Ander Urio ………………. UPV/EHU, Bilbao, Spain

Transmis par D. G. Figueroa

Envoyez svp vos propositions d’annonces à l’adresse : pncg@iap.fr
Pour gérer votre abonnement à la liste PNCG: https://listes.services.cnrs.fr/wws/info/pncg