Quantum Confining Excitons with an Electrostatic Moiré SuperlatticeRemoveLiuxin Gu, Lifu Zhang, Sam Felsenfeld, Beini Gao, Rundong Ma, Suji Park, Houk Jang, Takashi Taniguchi, Kenji Watanabe, and You ZhouPhys. Rev. Lett. 135, 026901 (2025)