P
Peter S. Lomdahl
Researcher at Los Alamos National Laboratory
Publications - 137
Citations - 6457
Peter S. Lomdahl is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Shock wave & Josephson effect. The author has an hindex of 43, co-authored 137 publications receiving 6122 citations. Previous affiliations of Peter S. Lomdahl include University of Tsukuba & Santa Fe Institute.
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Journal ArticleDOI
The discrete self-trapping equation
TL;DR: In this article, a simple system of ordinary differential equations is introduced which has applications to the dynamics of small molecules, molecular crystals, self-trapping in amorphous semiconductors, and globular proteins.
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Microscopic View of Structural Phase Transitions Induced by Shock Waves
TL;DR: Multimillion-atom molecular-dynamics simulations are used to investigate the shock-induced phase transformation of solid iron, finding that the dynamics and orientation of the developing close-packed grains depend on the shock strength and especially on the crystallographic shock direction.
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Plasticity Induced by Shock Waves in Nonequilibrium Molecular-Dynamics Simulations
Brad Lee Holian,Peter S. Lomdahl +1 more
TL;DR: In this article, nonequilibrium molecular-dynamics simulations of shock waves in three-dimensional 10-million atom face-centered cubic crystals with cross-sectional dimensions of 100 by 100 unit cells were presented.
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Direct Observation of the alpha-epsilon Transition in Shock-compressed Iron via Nanosecond X-ray Diffraction
Daniel H. Kalantar,James Belak,Gilbert Collins,J. D. Colvin,H. M. Davies,Jon Eggert,Timothy C. Germann,James Hawreliak,Brad Lee Holian,Kai Kadau,Peter S. Lomdahl,Hector Lorenzana,Marc A. Meyers,K. Rosolankova,Matt S. Schneider,J. Sheppard,James S. Stolken,Justin Wark +17 more
TL;DR: In situ x-ray diffraction studies of iron under shock conditions confirm unambiguously a phase change from the bcc (alpha) to hcp (epsilon) structure, and are in good agreement with large-scale nonequilibrium molecular dynamics simulations.
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Soliton structure in crystalline acetanilide
TL;DR: In this paper, the theory of self-trapping of amide I vibrational energy in crystalline acetanilide was studied in detail and a spectrum of stationary, selftrapped (soliton) solutions was determined and tested for dynamic stability.