Magic optical trapping of Rydberg atoms

We demonstrate trapping of both ground and Rydberg excited Cesium atoms in an optical bottle beam trap. The trap is generated by crossing two tightly focused Laguerre-Gaussian LG$_{01}$ beams. This generates a dark region completely surrounded by light which is needed to trap Rydberg states which have negative polarizability. If the wavelength of light is chosen to also have a negative polarizability for the ground state then both states will be trapped. We demonstrate a trap lifetime for the Cs 61d$_{3/2}$ state of $360~\mu\rm s$ and a trap induced ground-Rydberg transition shift on the order of 100 kHz.