Cold-Atom Elevator: From Edge-State Injection to the Preparation of Fractional Chern Insulators Botao Wang ,1,*Monika Aidelsburger ,2,3,4Jean Dalibard ,5Andr? e Eckardt ,6,?and Nathan Goldman1,5,? 1CENOLI, Universit? e Libre de Bruxelles, CP 231, Campus Plaine, B-1050 Brussels, Belgium 2Faculty of Physics, Ludwig-Maximilians-Universit?t München, Schellingstr. 4, D-80799 Munich, Germany 3Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany 4Munich Center for Quantum Science and Technolog...