"Stopping Power and Transport in Warm and Hot Dense Plasmas"

Speaker: 
Paul Grabowski
Institution: 
UC Irvine, Dept. of Phys. & Astron.
Date: 
Tuesday, May 24, 2016
Time: 
1:30 pm
Location: 
FRH 4179
 

*Please note special time


 
ABSTRACT:
 
Stopping power is not only of direct relevance to the heating of fusion-burning plasmas and inertial confinement fusion, but also serves as a velocity-resolved probe of the many-body response of a plasma and atomic physics. Therefore, the accuracy of a model for a given set of plasma conditions and projectile energy and charge serves as a detailed test of collision operators and their predicted transport coefficients. I will compare many models with both high-performance-computing molecular dynamics simulation and high-precision (~3%) experiments performed at Omega. I will discuss the many roles density functional theory can play in transport calculations and the power of the local density approximation in transport. I will connect transport to atomic physics and outline future lines of research.

[1] P.E. Grabowski, M.P. Surh, D.F. Richards, F.R. Graziani, and M.S. Murillo, “Molecular Dynamics Simulations of Classical Stopping Power,” Physical Review Letters, 111, 215002 (2013).

[2] J. A. Frenje, P. E. Grabowski, C. K. Li, F. H. Séguin, A. B. Zylstra, M. Gatu Johnson and R. D. Petrasso, J. A. Delettrez, V. Yu Glebov and T. C. Sangster, “Measurements of Ion Stopping Around the Bragg Peak in High-Energy-Density Plasmas,” Physical Review Letters, 115, 205001 (2015).

[3] A.B. Zylstra, J.A. Frenje, P.E. Grabowski, C.K. Li, G.W. Collins, P. Fitzsimmons, S. Glenzer, F. Graziani, S. Hansen, S.X. Hu, M. Gatu Johnson, P. Keiter, J.R. Rygg, F.H. Séguin, H. Sievers, and R.D. Petrasso, “Measurement of Charged-Particle Stopping in Warm Dense Plasma,” Physical Review Letters, 114, 215002 (2015), editors’ suggestion.

[4] J. Kim, B. Qiao, C. McGuffey, M.S. Wei, P.E. Grabowski, and F.N. Beg, “Self-consistent simulation of transport and energy deposition of intense laser-accelerated proton beams in solid density matter,” Physical Review Letters, 115, 054801 (2015).

[5] A. Pribram-Jones, P.E. Grabowski, and K. Burke, “Thermal Density Functional Theory: Time-Dependent Linear Response and Approximate Functionals from the Fluctuation-Dissipation Theorem,” Physical Review Letters, in press.

 

 
 
Host: 
Franklin Dollar