Plasma Waves and the Compressibility of Warm Dense Hydrogen
ORAL
Abstract
Recent experiments on single- and double-shocked liquid deuterium[1,2] have provided new evidence for increased compressibility of hydrogen compared to theoretical models in the warm-dense-matter regime between 200 and 1000 GPa. We show that a specific heat contribution from plasma waves, not explicitly included in the theoretical models, is sufficient to explain the discrepancy.
[1] A. Fernandez-Pañella et al., Phys. Rev. Lett. 122, 255702 (2019).
[2] D. E. Fratanduono et al., Phys. Plasmas 26, 012710 (2019).
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Publication: Manuscript in preparation for submission to PRL, likely with same title and authors.
Presenters
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J. Ryan R Rygg
University of Rochester, Laboratory for Laser Energetics, U. of Rochester
Authors
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J. Ryan R Rygg
University of Rochester, Laboratory for Laser Energetics, U. of Rochester
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Gilbert Collins
University of Rochester, Laboratory for Laser Energetics, University of Rochester, Laboratory for Laser Energetics, U. of Rochester
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Peter M Celliers
Lawrence Livermore Natl Lab