Fringe spacing and phase of interfering matter waves
نویسندگان
چکیده
We experimentally investigate the outcoupling of atoms from Bose-Einstein condensates using two radiofrequency rf fields in the presence of gravity. We show that the fringe separation in the resulting interference pattern derives entirely from the energy difference between the two rf fields and not the gravitational potential difference between the two resonances. We subsequently demonstrate how the phase and polarization of the rf radiation directly control the phase of the matter wave interference and provide a semiclassical interpretation of the results.
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