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Rabi-oscillation-induced<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>π</mml:mi></mml:math>phase flip in an unbalanced Ramsey atom interferometer

Rabi-oscillation-induced<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>π</mml:mi></mml:math>phase flip in an unbalanced Ramsey atom interferometer

We present an observation of zero-to-$\ensuremath{\pi}$ phase flips induced by Rabi oscillation in an unbalanced Ramsey atom interferometer. The phase shift and visibility are experimentally investigated by modulating either the polarization or duration of Raman lasers, and they are well explained by a theoretical model. In an atom interferometer, the …