2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55080The thermofield dynamics of the $D = 10$ heterotic thermal string theory is exemplified at any finite temperature through the infrared behaviour of the one-loop cosmological constant in proper reference to the thermal duality symmetry in association with the global phase structure of the thermal string ensemble.5 pages, LatexHigh Energy Physics - Theorytext