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Matter-Wave Decoherence due to a Gas Environment in an Atom Interferometer
Hermann Uys, John D. Perreault, Alexander D. Cronin
Decoherence due to scattering from background gas particles is observed for the first time in a Mach-Zehnder atom interferometer, and compared with decoherence due to scattering ph…
Measurement of atomic diffraction phases induced by material gratings
John D. Perreault, Alexander D. Cronin
Atom-surface interactions can significantly modify the intensity and phase of atom de Broglie waves diffracted by a silicon nitride grating. This affects the operation of a materia…
Limitations of Nanotechnology for Atom Interferometry
Alexander D. Cronin, Lu Wang, John D. Perreault
Do van der Waals interactions determine the smallest nanostructures that can be used for atom optics? This question is studied with regard to the problem of designing an atom inter…
de Broglie Wave Phase Shifts Induced by Surfaces Closer than 25 nm
Alexander D. Cronin, John D. Perreault
Four atom optics experiments that each serve to measure atom-surface interactions near nanofabricated gratings are presented here. In these experiments atoms in a beam travel withi…
Analysis of a Material Phase Shifting Element in an Atom Interferometer
John D. Perreault, Alexander D. Cronin
The interaction of Na atoms with a surface was probed by inserting a nanofabricated material grating into one arm of an atom interferometer (IFM). This technique permits a direct m…
Observation of atom wave phase shifts induced by van der Waals atom-surface interactions
John D. Perreault, Alexander D. Cronin
The development of nanotechnology and atom optics relies on understanding how atoms behave and interact with their environment. Isolated atoms can exhibit wave-like (coherent) beha…