These results are interesting to the people working in the field of atom interferometer, because the test mass are often used in the practical experiment.
In the Introduction, quite a lot of papers are cited concerning the applications of atom interferometer in varies fields. Just for the note of the authors, there are some new applications of atom interferometer, e.g., in the accurate measurement of the quadratic Zeeman coefficient [J. Phys. B: At. Mol. Opt. Phys., 47(1): 015001, 2014].