Thermodynamic properties of a neutral vector boson gas in a constant magnetic field

摘要

The thermodynamical properties of a neutral vector boson gas in a constant magnetic field are studied starting from the spectrum given by Proca formalism. Bose-Einstein condensation (BEC) and magnetization are obtained in the limit of low temperature. In this limit, the condensation is reached not only by decreasing the temperature or augmenting the density but also by increasing the magnetic field. The magnetization turns out to be a positive quantity that increases with the field; under certain conditions self-magnetization is possible. The anisotropy in the pressures due to the axial symmetry imposed to the system by the magnetic field is also discussed. Astrophysical implications are commented.