
Title
Staff Physicist 
Email
benedict5@llnl.gov 
Phone
(925) 4243034 
Organization
Not Available
Research Interests
 Manyelectron effects in optical properties of bulk solids and nanostructures
 Multiphase equations of state and phase diagrams of materials
 Optical properties of systems in extreme conditions of pressure and temperature
 Physics of dense, highly collisional plasmas.
 Finiteelement continuum simulations of high energy density physics experiments
Personal Background
Lorin Benedict joined the Physics Division at the end of 1998 as a computational condensed matter theorist. Prior to being at LLNL, he was an NRC postdoc at the National Institute of Standards and Technology in Gaithersburg, MD, where he worked with Eric Shirley on the computation of excitonic effects in optical spectra of solids. He holds a BA in Physics from the University of Chicago (1992), and a PhD in Physics from the University of California at Berkeley (1996), where he worked in the groups of Steven Louie and Marvin Cohen. His thesis work was on predicting various properties of carbon nanotubes and other closely related materials. His current interests are threefold: 1. Using phenomenological models to produce very accurate multiphase equations of state for materials such as actinides, hydrogen, carbon, beryllium, etc. 2. Investigating the physics of dense, highly collisional plasmas using molecular dynamics and kinetic equations, and 3. Employing ASC multiphysics continuum codes to analyze and design high energy density physics experiments.
Ph.D., Physics, University of California at Berkeley, 1996
B.A., Physics, University of Chicago, 1992
 Damian C. Swift, Mandy Bethkenhagen, Alfredo A. Correa, Thomas Lockard, Sebastien Hamel, Lorin X. Benedict, Philip A. Sterne, and Bard I. Bennett, "High temperature ionthermal behavior from averageatom calculations", Phys. Rev. E 101, 053201 (2020).
 Damian C. Swift, Thomas Lockard, Raymond F. Smith, Christine J. Wu, and Lorin X. Benedict, "High pressure melt curve of iron from atominjellium calculations", Phys. Rev. Res. 2, 023034 (2020).
 Damian C. Swift, Thomas Lockard, Richard G. Kraus, Lorin X. Benedict, Philip A. Sterne, Mandy Bethkenhagen, Sebastien Hamel, and Bard I. Bennett, "Atominjellium equations of state in the high energydensity regime", Phys. Rev. E 99, 063210 (2019).
 Philip C. Myint, Alexander A. Chernov, Babak Sadigh, Lorin X. Benedict, Burl M. Hall, Sebastien Hamel, and Jonathan L. Belof, "Nanosecond freezing of water at high pressures: Nucleation and growth near the metastability limit", Phys. Rev. Lett. 121, 155701 (2018).
 J. A. Gaffney et al., "A review of equationofstate models for inertial confinement fusion materials", High Energy Density Physics 28, 7 (2018).
 T. Doppner et al., “Absolute equationofstate measurement for polystyrene from 25 to 60 Mbar using a spherically converging shock wave”, Phys. Rev. Lett. 121, 025001 (2018).
 M. Millot et al., “Measuring the shock impedance mismatch between highdensity carbon and deuterium at the National Ignition Facility”, Phys. Rev. B 97, 144108 (2018).
 Christian R. Scullard, Susana Serna, Lorin X. Benedict, C. Leland Ellison, and Frank R. Graziani, “Analytic expressions for electronion temperature equilibration rates from the LenardBalescu equation”, Phys. Rev. E 97, 013205 (2018).
 Shuai Zhang, Burkhard Militzer, Lorin X. Benedict, Francois Soubiron, Philip A. Sterne, and Kevin P. Driver, “Path integral Monte Carlo simulations of dense carbonhydrogen plasmas”, J. Chem. Phys. 148, 102318 (2018).
 L.A. ZepedaRuiz, B. Sadigh, A.A. Chernov, T. Haxhimali, A. Samanta, T. Oppelstrup, S. Hamel, L.X. Benedict, and J.L. Belof, “Extraction of effective solidliquid interfacial free energies for full 3D solid crystallites from equilibrium MD simulations”, J. Chem. Phys. 147, 194704 (2017).
 Philip C. Myint, Lorin X. Benedict, and Jonathan L. Belof, “Free energy models for ice VII and liquid water derived from pressure, entropy, and heat capacity relations”, J. Chem. Phys. 147, 084505 (2017).
 Lorin X. Benedict, Michael P. Surh, Liam G. Stanton, Christian R. Scullard, Alfredo A. Correa, John I. Castor, Frank R. Graziani, Lee A. Collins, Ondrej Certik, Joel D. Kress, and Michael S. Murillo, "Molecular dynamics studies of electronion temperature equilibration in hydrogen plasmas within the coupledmode regime", by Phys. Rev. E 95, 043202 (2017).
 Michael P. Desjarlais, Christian R. Scullard, Lorin X. Benedict, Heather D. Whitley, and Ronald Redmer, "Densityfunctional calculations of transport properties in the nondegenerate limit and the role of electronelectron scattering", Phys. Rev. E 95, 033203 (2017).
 Michael P. Surh, Lorin X. Benedict, and Babak Sadigh, "Magnetostructural transition kinetics in shocked iron", Phys. Rev. Lett. 117, 085701 (2016).
 P.A. Sterne, L.X. Benedict, S. Hamel, A.A. Correa, J.L. Milovich, M.M. Marinak, P.M. Celliers, and D.E. Fratnaduono, "Equations of state for ablator materials in inertial confinement fusion simulations", J. Phys.: Conf. Ser. 717, 012282 (2016).
 Catalin D. Spataru, Luke Shulenburger, and Lorin X. Benedict, "Ab initio manybody Green's function calculations of optical properties of LiF at high pressures", Phys. Rev. B 92, 245117 (2015).
 Markus Daene, Soo Kyung Kim, Michael P. Surh, Daniel Aberg, and Lorin X. Benedict, "Density functional theory calculations of magnetocrystalline anisotropy energies for (Fe_{1x}Co_{x})_{2}B", J. Phys. Condens. Matter
 Heather D. Whitley, David M. Sanchez, Sebastien Hamel, Alfredo A. Correa, and Lorin X. Benedict, Molecular dynamics simulations of warm dense carbon ., Contrib. Plasma Phys. vol. 55, 390 (2015).
 Heather D. Whitley, Christian R. Scullard, Lorin X. Benedict, John I. Castor, Amanda Randles, James N. Glosli, David F. Richards, Michael P. Desjarlais, and Frank R. Graziani, LenardBalescu calculations and classical molecular dynamics simulations of electrical and thermal conductivities of hydrogen plasmas , Contrib. Plasma Phys. 55, 192 (2015).
 R.F. Smith, J.H. Eggert, D.G. Braun, J.R. Patterson, R.E. Rudd, R. Jeanloz, T.S. Duffy, J. Biener, A.E. Lazicki, A.V. Hamza, J. Wang, T. Braun, L.X. Benedict, P.M. Celliers, and G.W. Collins, Ramp compression of diamond to 5 TPa , Nature 511, 330 (2014).
 Lorin X. Benedict, Kevin P. Driver, Sebastien Hamel, Burkhard Militzer, Tingting Qi, Alfredo A. Correa, A. Saul, and Eric Schwegler, Multiphase equation of state for carbon addressing high pressures and temperatures , Phys. Rev. B 89, 224109 (2014).
 Lorin X. Benedict, Michael P. Surh, John I. Castor, Saad A. Khairallah, Heather D. Whitley, David F. Richards, James N. Glosli, Michael S. Murillo, Christian R. Scullard, Paul Grabowski, David Michta and Frank R. Graziani, Molecular dynamics simulations and generalized LenardBalescu calculations of electronion temperature equilibration in plasmas , Phys. Rev. E 86, 046406 (2012).
 Sebastien Hamel, Lorin X. Benedict, Peter M. Celliers, M.A. Barrios, T.R. Boehly, G.W. Collins, T. Doppner, J.H. Eggert, D.R. Farley, D.G. Hicks, J.L. Kline, A. Lazicki, S. LePape, A.J. Mackinnon, J.D. Moody, H.F. Robey, E. Schwegler and Philip A. Sterne, Equation of state of CH_1.36: Firstprinciples molecular dynamics simulations and shockandrelease wave speed measurements , Phys. Rev. B 86, 094113 (2012).
 Frank R. Graziani, Victor S. Batista, Lorin X. Benedict , John I. Castor, Hui Chen, Sophia N. Chen, Chris A. Fichtl, James N. Glosli, Paul E. Grabowski, Alexander T. Graf, Stefan P. HauRiege, Andrew U. Hazi, Saad A. Khairallah, Liam Krauss, A. Bruce Langdon, Richard A. London, Andreas Markmann, Michael S. Murillo, David F. Richards, Howard A. Scott, Ronnie Shepherd, Liam G. Stanton, Michael P. Surh, Jon C. Weisheit, Heather D. Whitley, Largescale molecular dynamics of dense plasmas: the Cimarron project High Energy Density Physics 8, 105 (2012).
 Miguel A. Morales, Lorin X. Benedict, Daniel S. Clark, Eric Schwegler, Isaac Tamblyn, Stanimir A. Bonev, Alfredo A. Correa, and Steven W. Haan, Ab initio calculations of the equation of state of hydrogen in a regime relevant for inertial fusion applications , High Energy Density Physics 8, 5 (2012).
Fellow of the American Physical Society, elected 2018