XXXV International Conference on Equations of State for Matter

This paper is a preface to the proceedings of the XXXV International Conference on Equations of State for Matter, which was held at the Cheget pension in the village of Terskol, in the settlement of Elbrus, in the Kabardino-Balkar Republic of the Russian Federation, from March 1 to 6, 2020.


Introduction
The XXXV International Conference on Equations of State for Matter (ELBRUS 2020) was held at the Cheget pension located on Polyana Cheget in the village of Terskol, in the settlement of Elbrus, in the Kabardino-Balkar Republic of the Russian Federation, from Sunday, March 1, to Friday, March 6, 2020 [1].

Conference location
The Cheget pension in Terskol is 5 km from Mount Elbrus (the highest peak of the Caucasus at 5642 m), about 120 km from Nalchik, which is the capital of the Kabardino-Balkar Republic, where the nearest international airport is located, and about 180 km from Mineralnye Vody, where there is another international airport.
The village of Terskol is located in the valley of the Baksan River, which begins on Mount Elbrus. It is a famous ski resort at altitude of about 2000 m. This valley is in a national park, which is a region of extreme natural beauty. Visit to Mount Elbrus is possible by cable car for seeing the Greater Caucasus range with permanent snow from the Old Krugozor (3000 m), Mir (3500 m) and Gara-Bashi (3780 m) stations.

Topics
• Equations of state and constitutive equations for matter under extreme conditions at high pressures and temperatures; • Shock waves, detonation and combustion physics; • Interaction of intense laser, x-ray and microwave radiation with matter; • Interaction of powerful particle beams with matter; • Experimental techniques of generation and diagnostics of extreme states of matter; • Methods of mathematical modeling in physics of extreme states of matter; • High-energy astrophysics; • Low-temperature plasma physics; • Issues of physics and power engineering, technology aspects.  Figure 1. Participants of the ELBRUS 2020 conference.
7. Participants 364 people were pre-registered as participants of the conference. They submitted 306 abstracts [2] with results of works of 751 co-authors from 121 institutions from 15 countries (Argentina, Australia, Belarus, the People's Republic of China, the Czech Republic, France, Germany, Italy, Japan, Poland, Russia, Turkey, Ukraine, the United Kingdom, the United States of America). 201 participants attended the sessions from different cities of Russia (figure 1).

Scientific program
The conference program consisted of 5 plenary, 66 regular oral and 235 poster presentations.

Poster session
All posters were presented during two poster sessions on March 2 and 3, 2020.

Best poster awards
A contest for the best poster was held among the participants. Prizes went to five: • Arseniy Burov (JIHT RAS, Moscow, Russia) "Ab initio study of MgO under pressure using quasiharmonic approximation"; • Ekaterina Godina (Institute for Electrophysics and Electrical Power RAS, Saint-Petersburg, Russia) "Arc pyrolysis of methane in the presence of oxygen"; • Alina Kirillova (Saint-Petersburg State Technological Institute [Technical University], Saint-Petersburg, Russia) "Investigation of wood ash melting by ac plasma torch"; • Anastasia Igorevna Krikunova (Moscow Institute of Physics and Technology, Dolgoprudny, Russia) "Flames under the reducing gravity"; • Alexandra Igorevna Khirianova (Lebedev Physical Institute RAS, Moscow, Russia) "The simultaneous use of interferometry and schlieren photography in laser diagnostics of plasma objects".

Prospects
The next meeting in the series is the XXXVI International Conference on Interaction of Intense Energy Fluxes with Matter, 1-6 March 2021, Elbrus, Kabardino-Balkaria, Russia [3].