Rudolf Muradovich Muradyan

Rudolf Muradovich Muradyan (Armenian: Ռուդոլֆ Մուրադի Մուրադյան; 19 June 1936 – 9 November 2024) was an Armenian theoretical physicist. Rudolf Muradyan's main research relate to theoretical physics, elementary-particle physics, cosmology and the origin of the Universe. Considering the properties of the interaction of elementary particles, he proposed the possibility of large-scale invariance in high-energy physics, from which the "Matveev-Muradyan-Tavkhelidze quark counting rule" is derived especially. He also researched the connection between the appearance of the Universe's rotation and magnetic fields and the cosmological constant. He is the recipient of the 1988 Lenin Prize, along with Albert Tavkhelidze and Viktor Matveev, for the discovery of dimensional quark counting rules.

Biography Rudolf Muradyan was born on June 19, 1936, in Yerevan, Armenia. After graduating from the Yerevan Secondary School № 25 in 1953, Muradyan entered the Faculty of Physics at Moscow State University in Moscow, graduating in 1959. In 1962 he finished his postgraduate study in the Faculty of Physics of Moscow State University and defended his thesis for a PhD in Physics and Mathematics. In 1970 he was awarded a doctorate in physical-mathematical sciences and appointed professor. In 1972 he joined the Communist Party of the Soviet Union. In 1970 at JINR he defended his thesis for the degree of Doctor of physical and mathematical sciences, and received the academic rank of professor. In 1986 Muradyan was elected a corresponding member of the Academy of Sciences of the Armenian SSR. thumb Moscow State UniversityFrom 1984 to 1994 he worked at Byurakan Astrophysical Observatory of Armenian SSR Academy of Sciences (NAS RA) as a Leading Researcher and since 1985 he worked as a Team Leader. In the same year he was elected an academician of the National Academy of Sciences of Armenia.

Muradyan died on 9 November 2024, at the age of 88.

Scientific Work Rudolf Muradyan's main research is in theoretical physics, elementary particle physics, high-energy physics, cosmology and mathematical physics.

In 1973, based on the principle of self-similarity, the so-called "Matveev-Muradyan-Tavkhelidze quark counting rules" were established. They define the asymptotics of the form factors at large momentum transfer as well as the nature of the energy dependence of the differential cross section of an arbitrary binary scattering reaction at large angles at high energies :

Where is the total number of elementary hadron components participating in the reaction. In this case if the particle is a structureless lepton. The function depends only on the ratio of large kinematic variables. It is a dimensional quantity and the natural scale here is the effective particle size. The power asymptotic law indicates factorization of large and small distance effects.

Muradyan investigated the emergence of the Universe, stars, galaxies from an initial hadron, as well as the connection between the appearance of the Universe's rotation and magnetic fields and the cosmological constant . In 1976, he discovered a new expression for the angular momentum of the rotation of the Universe:

Where is the Dirac constant, is the speed of light, is the gravitational constant, and is the proton mass. Muradyan's proposed hypothesis of the emergence of the Universe, related to Victor Hambardzumian's theory of the emergence of the Universe, allows to explain the appearance of the rotation of space objects (stars, galaxies and others) in a quantitative way, based on the known relationship in the physics of elementary particles between mass and rotation momentum. In 1970, Rudolf Muradyan gave an exact solution to the problem of "random walks" on the sphere and in Lobachevsky space. In 1981 he proposed a direct and unified method for constructing irreducible representations for all discrete subgroups of a three-dimensional rotation group, especially for the triangle, tetrahedron and octahedron groups. In 1998, investigating Hopf structures in n-Li - Nambu algebras, he introduced the fundamental concepts of 3-coalgebras, 3-algebras and 3-algebras of Hopf.

In 1990 Rudolf Muradyan proposed the new form of Mendeleev's Periodic Table: the system in which the order of the elements is determined not by the sequence number, but by the structure of the electron shell filling of the atom. This table of elements is based on the quantum-mechanical structure of the atom, and has certain convenience and clarity.