New Theoretical Approaches to Collisions and Specroscopy

Presentations

• Machine learning approaches to extend and improve state-resolved molecular collision data

  ORAL · Invited

  June 17, 2025, 2:00 PM – June 17, 2025, 2:30 PM

  Presenters

  • Robert C Forrey

    • Penn State Berks

  Authors

  • Robert C Forrey

    • Penn State Berks

  • Darin Mihalik

    • University of Georgia

  • Ruihan Wang

    • University of Georgia

  • Benhui Yang

    • University of Georgia

  • Phillip Stancil

    • Professor/Research mentor
    • University of Georgia

  • T. J. J Price

    • Alvernia University

  • N. Balakrishnan

    • University of Nevada, Las Vegas
    • University of Nevada, Las Vegas, NV 89154

  • Roman V Krems

    • University of British Columbia

  View abstract →

• Data-Driven Machine Learning Models for Atomic and Molecular Collisions

  ORAL · Invited

  June 17, 2025, 2:30 PM – June 17, 2025, 3:00 PM

  Publication: T. J. Wasowicz, M. K. Jurkowski, A. L. Harris, I. Ljubić, J. Chem. Phys. 161, 064304 (2024).
  A. L. Harris and J. Nepomuceno, J. Phys. B 57, 025201 (2024).
  A. L. Harris and J. A. Darsey, Eur. Phys. J. D. 67, 130 (2013).

  Presenters

  • Allison L. Harris

    • Illinois State University

  Authors

  • Allison L. Harris

    • Illinois State University

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• Accelerating Monte Carlo Simulation of Rare Events by Importance Sampling using Neural Network

  ORAL

  June 17, 2025, 3:00 PM – June 17, 2025, 3:12 PM

  Presenters

  • Myung Chul Kim

    • Stanford University

  Authors

  • Myung Chul Kim

    • Stanford University

  • Wei Cai

    • Stanford University

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• The Opacity Project: R-matrix calculations, plasma broadening effects and equation-of-State for High-Energy-Density sources

  ORAL

  June 17, 2025, 3:12 PM – June 17, 2025, 3:24 PM

  Publication: 1. Plasma effects on resonant phenomena, Anil Pradhan, to appear in Can. J. Phys. (2024).
  2. Interface of Equation-of-State, Atomic Data and Opacities in the Solar Problem, Anil K. Pradhan, MNRAS Letters, 527, L179 (2024).
  3. R-Matrix calculations for opacities: RMOP-I. Methodology and computations , A.K. Pradhan, S.N. Nahar and W. Eissner (J.Phys.B, 57, 125001, 2024)
  4. R-Matrix calculations for opacities.RMOP-II. Photoionization and oscillator strengths of iron ions FeXVII, FeXVIII and FeXIX, S.N. Nahar, L. Zhao, W. Eissner and A.K. Pradhan (J.Phys.B, 57, 125002, 2024)
  5. R-matrix calculations for opacities: RMOP-III. Plasma broadening of autoionizing resonances, A.K. Pradhan (J. Phys.B, 57, 125003, 2024)
  6. R-Matrix calculations for opacities: RMOP-IV. Convergence, completeness, and comparison of relativistic R-matrix and distorted wave calculations for FeXVII and FeXVIII, L. Zhao, S.N. Nahar and A.K. Pradhan (J. Phys.B, 57, 125004, 2024)
  7. Photionization and Opacity, Anil Pradhan, Atoms, 11, 52 (2023)

  Presenters

  • Divya Chari

    • The Ohio State University

  Authors

  • Anil Kumar Pradhan

    • Ohio State University

  • Divya Chari

    • The Ohio State University

  • Sultana Nurun Nahar

    • Ohio State Univ - Columbus

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• The Los Alamos National Laboratory MOLecular OPacity (MOLOP) Suite of Codes – Application to Air Plasma

  ORAL

  June 17, 2025, 3:24 PM – June 17, 2025, 3:36 PM

  Publication: [1] M. C. Zammit et al. J. Phys. B: At. Mol. Opt. Phys. 55, 184002 (2022)

  Presenters

  • Amanda Joy Neukirch

    • Los Alamos National Laboratory (LANL)

  Authors

  • Amanda Joy Neukirch

    • Los Alamos National Laboratory (LANL)

  • Mark C Zammit

    • Los Alamos National Laboratory (LANL)

  • Isuru Ariyarathna

    • Los Alamos National Laboratory

  • James P Colgan

    • Los Alamos National Laboratory (LANL)

  • Christopher J Fontes

    • Los Alamos National Laboratory (LANL)

  • Aaron Forde

    • Los Alamos National Laboratory (LANL)

  • Jeffery A Leiding

    • Los Alamos National Laboratory (LANL)

  • Eddy M Timmermans

    • Los Alamos Natl Lab

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• Abstract Withdrawn

  ORAL · Withdrawn

  June 17, 2025, 3:36 PM – June 17, 2025, 3:48 PM

  View abstract →