arXiv subjects

N. N. Levin

Publications and source records attributed to N. N. Levin.

2 recordsLinked to original sources

arXiv2024

Rotation-induced phase transition in planar continuous helicity gas

In this paper, we investigate the thermodynamics of an ideal gas of classical particles with continuous helicity in three-dimensional Minkowski space. Using the one-particle distribution function for a particle with continuous helicity, we obtain expressions for the chemical potential, angular momentum, and entropy of the gas. We show that such a system placed in a rotating container can be in two phases: rotating and non-rotating. We describe the conditions for the phase transition and examine the phase diagram of the gas. It is found that at low angular velocities, the rotating phase can exist only in the form of metastable states. A feature of metastable states with low angular velocities is a negative angular momentum.

cond-mat.stat-mech↗

arXiv2023

Generalized Maxwell-Juttner distribution for rotating spinning particle gas

We consider a statistical mechanics and thermodynamics of a rotating ideal gas of classical relativistic particles with nonzero mass and spin. Applying the Gibbs theory of canonical ensembles for a system rotating with constant angular velocity, we obtain the one-particle distribution function by positions, momenta, and spin variables. By computing the partition function, we obtain various thermodynamic quantities of slowly rotating gas. Both the statistical and thermodynamic approaches demonstrate the polarization of spinning degree of freedom, with the majority of spins being directed along the angular velocity vector. This confirms the presence of chiral effects in the system.

cond-mat.stat-mech↗