Speaker
Description
We discuss the efficient quantum-quasiclassical method developed by V.S. Melezhik with co-authors [1-4], which has been successfully applied to calculate various few-body processes and has made it possible to resolve a number of topical problems in atomic [1,3-5], mesoatomic [2], and nuclear physics [6]. In this approach, a few-body quantum problem is reduced to the simultaneous integration of a system of coupled quantum and classical equations: the time-dependent Schrödinger equation, which describes the quantum dynamics of slow light paricles, and the classical Hamilton equations, describing the fast variables of heavy particles.
Recently [5], the approach was extended and adapted for quantitative description of pair collisions of light slow Li atoms with heavy Yb+ ions in the confined geometry of the hybrid atom-ion trap. On the basis of these calculations, a new method for sympathetic cooling of ions in a RF Paul trap was proposed: to use cold buffer atoms for this purpose in the region of atom-ion confinement-induced resonance [5].
This approach also made it possible to perform calculations of the breakup cross sections into the low-energy region (up to 10 MeV/nucleon), inaccessible so far to other methods, for the 11Be breakup on a heavy target [6].
The developed quantum-quasiclassical method opens new possibilities in the investigation of other hot few-body quantum systems.
- V.S. Melezhik and P. Schmelcher, Phys. Rev. Lett. 84, 1870 (2000).
- V.S. Melezhik, Hyperfine Int. 138, 351 (2001).
- V.S. Melezhik, J.S. Cohen, and C.Y. Hu, Phys. Rev. A69, 032709 (2004).
- V.S. Melezhik and L.A. Sevastianov, Lecture Notes in Comp. Sci. 10684, 449 (2017).
- V.S. Melezhik, Phys. Rev. A103, 053109 (2021).
- D. Valiolda, D. Jansejtov, and V.S. Melezhik, The European Phys. J. A58, 34 (2022).
| The speaker is a student or young scientist | No |
|---|---|
| Section | 1. Nuclear structure: theory and experiment |
