Resumen: Using dyonic solutions in the type IIA superstring theory on Calabi-Yau (CY) manifolds, we reconsider the study of black objects and quantum information theory using string/string duality in six dimensions. Concretely, we relate four-qubits with a stringy quaternionic moduli space of type IIA compactification associated with a dyonic black solution formed by black holes (BHs) and black 2-branes (B2B) carrying eight electric charges and eight magnetic charges. This connection is made by associating the cohomology classes of the heterotic superstring on T4 to four-qubit states. These states are interpreted in terms of such dyonic charges resulting from the quaternionic symmetric space SO(4, 4) SO(4)×SO(4) corresponding to a N = 4 sigma model superpotential in two dimensions. The superpotential is considered as a functional depending on four quaternionic fields mapped to a class of Clifford algebras denoted as Cl0, 4. A link between such an algebra and the cohomology classes of T4 in heterotic superstring theory is also given. Idioma: Inglés DOI: 10.1142/S0219887818500652 Año: 2018 Publicado en: International Journal of Geometric Methods in Modern Physics 15, 4 (2018), 1850065 [16 pp] ISSN: 0219-8878 Factor impacto JCR: 1.022 (2018) Categ. JCR: PHYSICS, MATHEMATICAL rank: 35 / 55 = 0.636 (2018) - Q3 - T2 Factor impacto SCIMAGO: 0.342 - Physics and Astronomy (miscellaneous) (Q3)