Author(s): Johannes Feldmeier, Yu-Jie Liu, Mikhail D. Lukin, and Soonwon Choi Preparing algebraically correlated ground states of quantum many-body systems is an important, yet challenging task for quantum simulation. We introduce a protocol that employs local projective measurements and unitary feedback for frustration-free gapless systems. Our approach prepares a priori unk… [Phys. Rev. Lett. 137, 160404] Published Thu Oct 15, 2026