Condensate fraction and critical temperature of interacting Bose gas in anharmonic trap Sudip Kumar Haldar, Barnali Chakrabarti, Satadal Bhattacharyya and Tapan Kumar Das Eur. Phys. J. D, 68 9 (2014) 262 Published online: 24 September 2014 DOI: 10.1140/epjd/e2014-50337-6