Two component boson-fermion plasma at finite temperature

Abstract

We discuss thermodynamic stability of neutral real (quantum) matter from the point of view of a computer experiment at finite, non-zero, temperature. We perform (restricted) path integral Monte Carlo simulations of the two component plasma where the two species are all bosons, all fermions, and one boson and one fermion. We calculate the structure of the plasma and discuss about the formation of binded couples of oppositely charged particles. The purely bosonic case is thermodynamically unstable. In this case we find an undetermined size dependent contact value of the unlike partial radial distribution function. For the purely fermionic case we find a demixing transition with binding also of like species.