2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/220584Motivated by desire to shed light on the strong coupling behaviour of anomalous dimensions of "short" gauge theory operators we consider the famous example of folded spinning string in AdS_5 in the limit of small semiclassical spin parameter §= S/sqrt[lambda]. In this limit the string becomes short and is moving in a near-flat central region of AdS_5. Its energy scales with spin as E = sqrt[2 S] [ a_0 + a_1 S + a_2 S^2 + ...]. We explicitly compute the leading 1-loop quantum AdS_5 x S^5 superstring corrections to the short-string limit coefficients a_0 and a_1 and show, in particular, that a_1 receives a contribution containing ζ(3).27 pages; v2: comments and appendix B about regularization ambiguity added; v3,4: minor corrections; v5: treatment of fermionic contribution corrected, a new appendix and a note addedHigh Energy Physics - Theorytext