BEC1: An atomtronic matterwave interferometer

BEC 1 [1] is concerned with trapped matterwave interferometry either in the fully trapped regime [2] or in matterwave guides. We have recently demonstrated the first guiding of matterwaves over macroscopic distances without affecting the internal coherence of the Bose-Einstein Condensates (BEC), i.e. to guide them without any heating or atom-loss. The waveguides are formed from a combination of magnetic fields at different frequencies (ranging from DC, over LF and RF to microwaves).

We have recently managed to demonstrate the first fully coherent waveguides (published in Nature [3]).

One possible version of the interferometer (trapped clock interferometer) is described here [2].