Speaker
Description
Rydberg atoms are a promising platform for hybrid quantum systems due to their dipole-allowed transitions spanning frequencies from the optical to the microwave regime and their strong coupling to electric fields. To investigate their integration with solid-state devices, we are developing a cryogenic experimental platform combining ultracold rubidium atoms with an electromechanical resonator on an atom chip.
This poster presents our two-chamber experimental setup. In the first chamber the rubidium atoms are prepared in a magneto-optical trap and afterwards magnetically transported to a cryogenic second chamber. In this chamber, our solid-state atom chip can be inserted. On the chip, the cooled rubidium atoms can be trapped in close distance to the resonator via a magnetic trap realized by superconducting wires on the chip. The atoms can then be excited to high-lying Rydberg states, which couple to the modes of the resonator.
The cryogenic environment in the second chamber allows to quickly recover the ultra-high vacuum in the chamber after exchanging the chip, which lets us efficiently test and optimize different chip designs. To realize this unusually regular retrieval and reinsertion of the chip, we mount the room temperature part of the vacuum system on rails. This allows us to move the 25+ kg setup on the optical table with high precision.
We present the design and current status of the system to establish a flexible experimental platform for future hybrid atom–solid-state experiments.
