1967/09/05 by G. Kalman · 2 citations
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Classical mechanics #Cold Atom Physics and Bose-Einstein Condensates #Hartree #Instability #Perturbation (astronomy) #Phase transition #Physics #Plasma #Quantum electrodynamics #Quantum mechanics #Scalar (mathematics) #Scalar field #Statistical Mechanics and Entropy #Thermodynamic equilibrium
paper · doi:10.1103/physrev.161.156
openalex publication_date 1967/09/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22
The properties of a classical many-particle system interacting through a scalar field (a scalar plasma) are studied. A relativistic Hartree approximation is applied to equilibrium to evaluate thermodynamic characteristics such as the energy, entropy, and equation of state. A gas-liquid phase transition appears at moderate densities. There is no collapse for an attractive interaction: The system can accomodate any density. Stability against small perturbation and the behavior of collective excitations are analyzed through the linear-response function.