Jae Gil Kim and Eok-Kyun Lee

Department of Chemistry, Korea Advanced Institute of Science and Technology, Taejon, Republic of Korea

We demonstrate the importance of the consistent treatment of mutual interaction between the condensate and the thermal component by applying the semiclassical Hartree-Fock model to the 2D trapped interacting Bose system. In contrast to the case where the interaction from the thermal component is neglected, the present system shows a lowering of the critical temperature and increase of the critical chemical potential due to the short-range repulsive interaction.