The interaction-induced shift of the phase-transition temperature for Bose-Einstein condensation of homogeneous weakly interacting Bose gases in three dimensions was investigated. A finite-temperature path integral Monte Carlo simulation (PIMC) method and finite-size scaling was used for the investigation . The superfluid fraction was calculated and the critical temperature for various hard-sphere diameters at a fixed number density was estimated. The results show that interaction-induced shift of the phase transition temperature depend strongly on the interaction strength an 1/3.
|Original language||English (US)|
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Issue number||5 B|
|State||Published - Nov 1 2004|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics