Title: Progress of Quantum Mechanics in Nuclear Physics, Gamow's Puzzle, Relativization and Open Problems
Speaker: Dr. (hab) Sergei Maydanyuk (Wigner Research Centre for Physics, Budapest & Institute for Nuclear Research, Kyiv)
Time: 4:00 pm, Apr.9th，2024
Venue: C109, New Science Building
Abstract: In this talk, I will demonstrate the advancement of quantum mechanics in study of nuclear physics problems and discuss some open problems in quantum physics. A new method for nuclear decays and capture of alpha-particles by nuclei will be presented, focusing on the quantum phenomena with high precision and tests. Then, this method will be applied for study of synthesis of nuclei in pycnonuclear reactions in compact stars, as well as for new calculations of fusion probabilities in synthesis of Magnesium from isotopes of Carbon inside medium of star. The method will be applied for study of Big Bang in quantum cosmology, where Friedmann - Robertson - Walker model with quantization in the presence of positive cosmological constant, radiation and the generalized Chaplygin gas is used. I will discuss the comparison of the Schrodinger equation and Dirac equation with interactions applied to the same physical phenomena., in principle (with relativistic approximations). The interpretation of wave functions from these two approaches is different. Nuclear forces are different if to understand those from Schrodinger equation or existed relativistic approaches. Finally, Relativization in quantum mechanics will be introduced, as way to connect quantum mechanics and special relativity. Starting from Dirac equation for one fermion with addition of potential, new Hamiltonian is formulated for relativistic collisions of nuclei.
Bio: Sergei P. Maydanyuk, Doctor of Sciences (Hab.), Ass. Professor, Research Fellow at Wigner Research Centre for Physics, Budapest, Hungary, Leading Sci. Researcher at Institute for Nuclear Research (Kyiv) of National Academy of Sciences of Ukraine. Researches are in nuclear physics and particle physics, nuclear astrophysics, quantum cosmology (two theses, about 90 research papers). Interest is on understanding of nuclear forces with highest precision (from first principles, quantum nature, origin, many-nucleon dynamics in scattering, relativistic and non-relativistic aspects, SUSYQM, in compact stars), quark matter, dense nuclear matter (pycnonuclear reactions in neutron stars), exotic nuclear physics (hypernuclei, in stars), photons and dileptons. He looks for new quantum paradoxes in Universe, nuclear and particle physics. S.P. Maydanyuk visited at Henryk Niewodniczanski Institute of Nuclear Physics (Krakow, 2001), Andrzej Soltan Institute for Nuclear Studies (Nuclear Theory Department, Warsaw, 2001, 2003, 2007), University of Messina (Messina, Italy, 2008-2011), Institute of Modern Physics in Lanzhou (Chinese Academy of Sciences, 2013-2019), Kavli Institute for Theoretical Physics China (KITPC, Beijing, 2015, 2016), Peking University, (Beijing, 2016), UCAS University (Beijing, 2019), Tsinghua University (Beijing, 2019, 2024), CERN (Department of Theoretical Physics, 2022, 2023).
