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Interfacial Phenomena and Heat Transfer
ESCI

ISSN Print: 2169-2785
ISSN Online: 2167-857X

Open Access

Interfacial Phenomena and Heat Transfer

DOI: 10.1615/InterfacPhenomHeatTransfer.2018025458
pages 165-171

METASTABLE STATES OF WARM DENSE HYDROGEN

Genri E. Norman
The National Research University Higher School of Economics, Myasnitskaya Street 20, Moscow, 101000, Russia; Joint Institute for High Temperatures of RAS, Izhorskaya Street 13 Bld. 2, Moscow, 125412, Russia; Moscow Institute of Physics and Technology (State University), Institutskiy Per. 9, Dolgoprudny, Moscow Region, 141700, Russia
Ilnur M. Saitov
The National Research University Higher School of Economics, Myasnitskaya Street 20, Moscow, 101000, Russia; Joint Institute for High Temperatures of RAS, Izhorskaya Street 13 Bld. 2, Moscow, 125412, Russia; Moscow Institute of Physics and Technology (State University), Institutskiy Per. 9, Dolgoprudny, Moscow Region, 141700, Russia
Roman A. Sartan
Joint Institute for High Temperatures of RAS, Izhorskaya Street 13 Bld. 2, Moscow, 125412, Russia; Moscow Institute of Physics and Technology (State University), Institutskiy Per. 9, Dolgoprudny, Moscow Region, 141700, Russia

ABSTRACT

Warm dense hydrogen is investigated by ab initio molecular dynamics simulations in the region of fluid–fluid phase transition. The method of getting adjacent metastable states is developed. The metastable states are successfully obtained in the region of densities from 0.920 to 0.970 g/cm3 and pressures from 1850 kbar to 2150 kbar along an example of 1000 K isotherm. The states have similar pair correlation function as equilibrium ones before the transition. The existence of metastable states provides possible physical reasons of the remarkable differences between phase transition parameters obtained by three experimental groups.


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