Understanding Matter Under Warm and Extremely Dense Conditions
Invited
Abstract
Understanding Matter Under Warm and Extremely Dense Conditions
S. X. Hu
Laboratory for Laser Energetics, U. of Rochester
Warm and extremely dense matter, having densities ranging from tens to millions of grams per cubic centimeters and temperatures of 104 to 106 K, widely exist in the universe such as giant planet cores and white dwarfs. Thanks to advances in technology, such extreme conditions can now be created in laboratories by powerful lasers or pulsed-power machines. Experimental advances have certainly helped us to unravel how matter behaves under warm and superdense conditions. On the theory and computation side, first-principles tools such as thermal density-functional theory (DFT) are often used to reveal novel properties of warm and extremely dense matter. Many new phenomena, for example, unusual K-edge shifting,[1] dynamical Ka-line movement,[2] and interspecies radiative transition,[3] have been predicted by ab-initio DFT calculations. Some of them have recently been confirmed by experimental measurements. In this talk, we will cover the recent progress in understanding the physics of matter in such extreme environments through both computational and experimental studies. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.
[1] S. X. Hu, Phys. Rev. Lett. 119, 065001 (2017).
[2] P. M. Nilson, et al., “Measurements of Temperature-Ionization Effects in the Hot Dense Matter Regime,” to be submitted to Physical Review Letters.
[3] S. X. Hu, V. V. Karasiev, and V. Recoules, “Inter-Species Radiative Transition: Exotic Atomic Physics in Extremely Dense Plasmas,” to be submitted to Nature Communications.
S. X. Hu
Laboratory for Laser Energetics, U. of Rochester
Warm and extremely dense matter, having densities ranging from tens to millions of grams per cubic centimeters and temperatures of 104 to 106 K, widely exist in the universe such as giant planet cores and white dwarfs. Thanks to advances in technology, such extreme conditions can now be created in laboratories by powerful lasers or pulsed-power machines. Experimental advances have certainly helped us to unravel how matter behaves under warm and superdense conditions. On the theory and computation side, first-principles tools such as thermal density-functional theory (DFT) are often used to reveal novel properties of warm and extremely dense matter. Many new phenomena, for example, unusual K-edge shifting,[1] dynamical Ka-line movement,[2] and interspecies radiative transition,[3] have been predicted by ab-initio DFT calculations. Some of them have recently been confirmed by experimental measurements. In this talk, we will cover the recent progress in understanding the physics of matter in such extreme environments through both computational and experimental studies. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.
[1] S. X. Hu, Phys. Rev. Lett. 119, 065001 (2017).
[2] P. M. Nilson, et al., “Measurements of Temperature-Ionization Effects in the Hot Dense Matter Regime,” to be submitted to Physical Review Letters.
[3] S. X. Hu, V. V. Karasiev, and V. Recoules, “Inter-Species Radiative Transition: Exotic Atomic Physics in Extremely Dense Plasmas,” to be submitted to Nature Communications.
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Presenters
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Suxing Hu
Laboratory for Laser Energetics, University of Rochester, NY, Laboratory for Laser Energetics, University of Rochester
Authors
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Suxing Hu
Laboratory for Laser Energetics, University of Rochester, NY, Laboratory for Laser Energetics, University of Rochester