2023/09/26 by G. S. Demyanov, Demyanov, G. S., P. R. Levashov +1
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Chemical Physics Studies #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Plasma Physics (physics.plasm-ph) #Statistical Mechanics and Entropy #nanoparticles nucleation surface interactions
paper · pdf · doi:10.48550/arxiv.2309.15208
openalex publication_date 2023/09/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The paper discusses the problem of stability of a two-component plasma and proposes a consistent consideration of quantum and long-range effects to calculate the thermodynamic properties of such a plasma. We restrict ourselves by the case of a non-degenerate plasma to avoid the fermionic sign problem and consider the weakly coupled regime. Long-range interaction effects are taken into account using the angular-averaged Ewald potential (AAEP). To calculate thermodynamic properties, we apply both classical Monte Carlo (CMC) and path integral Monte Carlo (PIMC) methods. A special method is developed to correctly calculate potential energy in PIMC simulations with long-range interaction effects. Our theoretical estimations show that the probability of a bound state formation is very low at a coupling parameter Γ~≤~0.01, so both classical and quantum simulations give the same energy at Γ~≤~0.01, and the thermodynamic limit coincides with the Debye--Hückel theory. At higher Γ, the N-convergence is lost due to the formation of bound states.