Improving efficiency of Bloch oscillations in the tight-binding limit

Abstract : Bloch oscillations of atoms in an optical lattice are a technique commonly used to accelerate atoms using photon recoils. The initial atomic state is crucial for optimizing the efficiency of the acceleration. Usually, a Bloch state is prepared by adiabatically loading atoms into the lattice. In this paper, using numerical simulations, we show that the optimal state (the Wannier-Bloch state) can significantly differ from the Bloch state. Furthermore, two experimental methods are presented in order to get closer to the optimal efficiency.
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Article dans une revue
Physical Review A, American Physical Society, 2017, 95 (6), pp.063604. 〈10.1103/PhysRevA.95.063604〉
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Soumis le : mardi 11 juillet 2017 - 11:38:09
Dernière modification le : mardi 24 avril 2018 - 17:20:06

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Pierre Cladé, Manuel Andia, Saïda Guellati-Khélifa. Improving efficiency of Bloch oscillations in the tight-binding limit. Physical Review A, American Physical Society, 2017, 95 (6), pp.063604. 〈10.1103/PhysRevA.95.063604〉. 〈hal-01560113〉

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