Bose-Einstein Condensation and Free DKP field
arXiv:hep-th/0309007 · doi:10.1016/S0375-9601(03)01018-1
Abstract
The thermodynamical partition function of the Duffin-Kemmer-Petiau theory is evaluated using the imaginary-time formalism of quantum field theory at finite temperature and path integral methods. The DKP partition function displays two features: (i) full equivalence with the partition function for charged scalar particles and charged massive spin 1 particles; and (ii) the zero mode sector which is essential to reproduce the well-known relativistic Bose-Einstein condensation for both theories.
12 pages, 2 eps figures. To be published in Physics Letter A