First-principles Stopping Power in Warm Dense Matter

Recent experiments provide measurements of fusion-product stopping powers in warm dense targets [1, 2]. State-of-the-art numerical modeling complements these critical advances in our empirical knowledge and phenomenological understanding of transport properties in this thermodynamic regime. In anticipation of future experiments, we assess the ability of real-time time-dependent density functional theory (TDDFT) to reproduce these results and compare its predictions with linear response TDDFT and average-atom models.

[1] A. B. Zylstra, J. A. Frenje, P. E. Grabowski, C. K. Li, G. W. Collins, P. Fitzsimmons, S. Glenzer, F. Graziani, S. B. Hansen, S. X. Hu, M. Gatu Johnson, P. Keiter, H. Reynolds, J. R. Rygg, F. H. Séguin, and R. D. Petrasso, Phys. Rev. Lett. 114, 215002 (2015).
[2] A. Frenje, P. E. Grabowski, C. K. Li, F. H. Séguin, A. B. Zylstra, M. Gatu Johnson, R. D. Petrasso, V. Yu Glebov, and T. C. Sangster, Phys. Rev. Lett. 115, 205001 (2015).