The fifth issue of Natural Science Review, an international online journal published by the Joint Institute for Nuclear Research, features three articles on mathematical physics, a paper on accelerator physics, and a historical review of condensed matter physics.
In “Complexity of Radon transforms”, Igor Anikin (Laboratory of Theoretical Physics at JINR) provides a detailed analysis of the Fourier projection-slice theorem which is key to deriving the universal inverse Radon transform. Furthermore, the author provides interpretations of degenerated (singular) points that require a certain form of regularisation. Methods for obtaining the required complexity at intermediate stages of the calculations are proposed as well. The approaches presented in the paper could be used for solving reconstruction problems.
A paper by scientists from JINR, the Moscow Institute of Physics and Technology, and the Zaryad Science and Technique Laboratory, “Figure-8 synchrotron for polarised protons and deuterons at the NICA Accelerator Complex”, discusses the possibility of using a figure-8 synchrotron as a replacement for the Nuclotron to accelerate polarised protons and deuterons at the NICA Complex. In addition to its primary function as an injector for the collider, this synchrotron can operate as a storage ring for precision experiments with polarised beams. Analysis of depolarisation effects and numerical modelling of spin dynamics during the acceleration of polarised protons and deuterons demonstrate the possibility of full control of polarisation in such a synchrotron.
Nikita Belousov (Beijing Institute of Mathematical Sciences), Gor Sarkissian (BLTP at JINR, Alikhanyan National Science Laboratory) and Vyacheslav Spiridonov (BLTP at JINR, Higher School of Economics) analysed a generalisation of the Calogero–Sutherland model (the complex rational integrable Ruijsenaars model), particularly the case of a two-particle system within such a model. New degenerations in complex Calogero–Sutherland models and the Ruijsenaars model are studied as well.
The historical review titled “A century of the Bose–Einstein condensation concept and half a century of the JINR experiments for observation of condensate in superfluid 4He (He II)” by Valentin Zagrebnov (Marseille Institute of Mathematics) is dedicated to the centenary of the idea of Bose condensation and the half-century anniversary of experiments conducted in Dubna confirming the link between Bose condensation and superfluidity in liquid 4He. The idea of Bose condensation was proposed by Albert Einstein based on the work of Satyendra Nath Bose in 1925 and later described phenomenologically by Fritz London; however, due to the underdevelopment of quantum mechanics at the time, it was not possible to describe such phenomena at the microscopic level. In 1947, Nikolay Bogoliubov studied the weakly non-ideal interaction between bosons and proposed a connection between the formation of a Bose condensate and superfluidity. Bogoliubov’s idea was successfully confirmed at the Laboratory of Neutron Physics at JINR in experiments on deeply inelastic neutron scattering on liquid helium at the IBR-30 Reactor in the 1970s.
In their paper titled “New variants of N=3,4 superconformal mechanics”, JINR researchers Sergey Krivonos and Nikita Kozyrev constructed a theory based on N=3 and N=4 supersymmetries, analogous to the Schwarz theory. The Schwarz system, which is a system with superconformal symmetry, provides insight into the field content of supersymmetric mechanics, particularly regarding the number and properties of the fermionic fields involved. By using a larger number of fermionic fields, systems with maximal superconformal symmetry are constructed, and bosonic realisations of subalgebras in N=4-symmetric mechanics are studied. The work opens up opportunities for constructing mechanics with extended N=5 and N=6 symmetries.
The end of December 2025 marked the first anniversary of Natural Science Review: during the first year since its creation, the journal published papers from various fields of science and made significant strides in its development as JINR’s new scientific infrastructure. The journal was established as a multidisciplinary platform accepting submissions across all research areas carried out at the Joint Institute. To date, the journal has published 26 articles, including research papers on theoretical and mathematical physics, high-energy physics, astrophysics, and other fields, as well as technical design reports, conceptual design reports, and historical reviews. The first year’s achievements include the journal covering most of the JINR research areas and attracting authors from various institutes to publish their studies.
The International Scientific Advisory Board (ISAB) and the journal’s editorial board were established. As of now, the ISAB and the editorial board comprise 21 and 28 leading scientists respectively, from 11 countries and JINR. The first meeting of the Board took place on 16 September 2025 in a hybrid format.
The Natural Science Review website was created, and its interface and functions are constantly being updated. The journal was registered as a media outlet and assigned an International Standard Serial Number (ISSN). In addition, it is available on Google Scholar, Inspire-HEP, ResearchGate, OpenAlex, and the eLibrary. The journal’s publications are accepted by JINR Dissertation Councils for the defence of dissertations for the awarding of academic degrees. Active preparations are currently underway to include Natural Science Review in the Unified State List of Scientific Publications – the Russian Federation’s “white list” – as well as the Scopus and Web of Science citation metric databases.
Submissions are now being accepted for the sixth issue of Natural Science Review (January–March 2025). In addition, applications are invited for the journal’s special anniversary issue marking the 70th anniversary of the Joint Institute for Nuclear Research.
