Ab InitioSimulations of Dense Helium Plasmas
- 8 April 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 106 (14) , 145002
Abstract
We study the thermophysical properties of dense helium plasmas by using quantum molecular dynamics and orbital-free molecular dynamics simulations, where densities are considered from 400 to 800\,\,g/cm3 and temperatures up to 800~eV. Results are presented for the equation of state. From the Kubo-Greenwood formula, we derive the electrical conductivity and electronic thermal conductivity. In particular, with the increase in temperature, we discuss the change in the Lorenz number, which indicates a transition from strong coupling and degenerate state to moderate coupling and partial degeneracy regime for dense helium.Keywords
All Related Versions
This publication has 21 references indexed in Scilit:
- Enhancing the Number of High-Energy Electrons Deposited to a Compressed Pellet via Double Cones in Fast IgnitionPhysical Review Letters, 2009
- Time-resolved absorption in cryogenic and room-temperature direct-drive implosionsPhysics of Plasmas, 2008
- Shock-timing experiments using double-pulse laser irradiationPhysics of Plasmas, 2006
- The Physics of Inertial Fusion2004
- The physics basis for ignition using indirect-drive targets on the National Ignition FacilityPhysics of Plasmas, 2004
- Ablative Stabilization of the Deceleration Phase Rayleigh-Taylor InstabilityPhysical Review Letters, 2000
- Direct-drive hydrodynamic instability experiments on the GEKKO XII laserPhysics of Plasmas, 1997
- Measurement of a Dispersion Curve for Linear-Regime Rayleigh-Taylor Growth Rates in Laser-Driven Planar TargetsPhysical Review Letters, 1997
- Laser Compression of Matter to Super-High Densities: Thermonuclear (CTR) ApplicationsNature, 1972
- Transport Phenomena in a Completely Ionized GasPhysical Review B, 1953