Phase shift in atom interferometers: Corrections for nonquadratic potentials and finite-duration laser pulses

Abstract : We derive an expression for the phase shift of an atom interferometer in a gravitational field taking into account both the finite duration of the light pulses and the effect of a small perturbing potential added to a stronger uniform gravitational field, extending the well-known results for rectangular pulses and at most quadratic potentials. These refinements are necessary for a correct analysis of present-day high-resolution interferometers.
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Submitted on : Friday, April 12, 2019 - 12:28:02 AM
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A. Bertoldi, F. Minardi, M. Prevedelli. Phase shift in atom interferometers: Corrections for nonquadratic potentials and finite-duration laser pulses. Phys.Rev.A, 2019, 99 (3), pp.033619. ⟨10.1103/PhysRevA.99.033619⟩. ⟨hal-02097402⟩

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