25 Jun

NuclearToolkit.jl and Surrogate Models for In-Medium Similarity Renormalization Group

25 June 2024 - 11:00 AM
1200 FRIB Laboratory and Online via Zoom
Utsunomiya University

Sota Yoshida

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In recent years, the development of efficient computational tools and methodologies has become increasingly crucial for advancing our understanding of nuclear structures and reactions. The FRIB/MSU group has been leading these directions: Here is the center of developing nuclear many-body calculations, and many codes (NuShellX, CENS, etc.) have been shared in the community. Starting from the eigenvector continuation method proposed by Prof. Dean Lee’s group, surrogate models have been developed for various nuclear models and models beyond our community. In the first part of this seminar, I will introduce NuclearToolkit.jl, a Julia-based package designed to facilitate complex nuclear physics calculations. This package is for young researchers like old me, struggling with the nuclear many-body calculations. This package covers a wide range of nuclear models, including the shell model, Møller-Plesset (also known as HF-MBPT), the In-Medium Similarity Renormalization Group (IM-SRG) method, surrogate models, and more. In the second part, I will focus on surrogate models especially in the context of the In-Medium Similarity Renormalization Group (IM-SRG) method. The IM-SRG is a powerful ab initio method for nuclear structure calculations and for deriving effective interactions and operators from realistic nuclear forces. I will introduce two surrogate models for further accelerating research workflows using the IM-SRG method. One is using a neural network and the other is based on the so-called dynamic mode decomposition. They are both complementary to each other. I will show the performance of these models and discuss a possible future direction to combine them.
14 Jul

Physicists Inspiring the Next Generation

14 July 2024 - 9:00 AM
1221A and 1221B FRIB Laboratory
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Exploring the Nuclear Matter (PING) is a program that targets both pre-college students and undergraduate students (who serve as mentors). It was launched in 2014 as a collaboration between the National Society of Black Physicists (NSBP) and the National Radio Astronomy Observatory (NRAO) in partnership with Associated Universities, Inc.
21 Jul

Physics of Atomic Nuclei (PAN)

21 July 2024 - 8:00 AM
1221A and 1221B FRIB Laboratory
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PAN introduces participants to the fundamentals of the extremely small domain of atomic nuclei and its connection to the extremely large domain of astrophysics and cosmology.

The PAN @ Michigan State Experience

  • Learn about research in one of the top rare-isotope laboratories in the world.
  • Get introduced to the fascinating fields of astrophysics, precision measurement, and nuclear science.
  • Perform your own nuclear physics experiments.
  • Meet researchers who are exploring a wide array of questions.
  • Discover the surprising array of career opportunities in science.
  • Experience the atmosphere of college life.
  • Participants in the 2024 program get free room and board on campus (if required).
12 Aug

FRIB-TA Summer School: Put the reaction into action: A nuclear physics boot camp on reaction methods

12 August 2024 - 8:00 AM
1200 FRIB Laboratory