2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/18927Presented is the theory of thermal Hall conductivity $κ_{xy}$ in the vortex state of high temperature cuprate superconductors in the clean limit. We show that $\lim_{T \to 0} κ_{xy}/T$ is a {\em staircase} function of 1/B with an envelope that scales as 1/B. The relation to the experiments is discussed.3 pages, 3 figuresSuperconductivityMesoscale and Nanoscale Physicstext