2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/181986In this talk we are going to review a method to construct the thermal boundary states of the thermal string in the TFD approach. The class of thermal boundary states presented here is derived from the BPS D-branes of the type II GS superstrings.Prepared for Fifth International Conference on Mathematical Methods in Physics, 2006, Rio de Janeiro, Brazil. Brief report on the results from hep-th/0607167High Energy Physics - Theorytext