2023-05-24 15:00  P7F/Online

[Journal Club] Relativistic Spin Magnetohydrodynamics

Dr. Avdhesh Kumar

In non-central heavy-ion collisions at relativistic beam energies, a large global angular momentum and very strong magnetic fields are generated in a direction perpendicular to reaction plane due to the relativistic motion of colliding heavy ions. These extreme physical conditions may generate a spin polarization and magnetization of the hot and dense matter, very similar to magneto-mechanical effects of Einstein–de Haas and Barnett. Therefore, a unified framework of “spin-magnetohydrodynamics” needs to be developed for precise calculation of any experimental observable pertaining to magnetic field and global angular momentum, respectively. In my seminar I will discuss our recent paper [PHYSICAL REVIEW LETTERS, 129, 192301 (2022)] where, using the kinetic theory description of massive spin-1/2 particles in the presence of a magnetic field we have formulated relativistic dissipative non-resistive magnetohydrodynamics and demonstrated that our framework naturally leads to emergence of the well-known Einstein–de Haas and Barnett effects.

Reference:
Samapan Bhadury, Wojciech Florkowski, Amaresh Jaiswal, Avdhesh Kumar, Radoslaw Ryblewski,
PHYSICAL REVIEW LETTERS, 129, 192301 (2022); arXiv:2204.01357 [nucl-th].