Author(s): Hossein Hosseinabadi, Subir Sachdev, and Jamir Marino A central question in frustrated quantum magnets is how quantum fluctuations destabilize spin-glass order and promote quantum spin-liquid behavior. We study the equilibrium dynamics of an infinite-range quantum Heisenberg model with random couplings, in which local magnetic moments arise from ${\mat… [Phys. Rev. Lett. 137, 126505] Published Thu Sep 17, 2026