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DPG

Mainz 2017 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 33: Ultracold atoms and BEC - V (with Q)

A 33.4: Vortrag

Freitag, 10. März 2017, 11:45–12:00, N 1

Realization of uniform synthetic magnetic fields by periodically shaking an optical square latticeCharles Creffield1, •Gregor Pieplow1, Fernando Sols1, and Nathan Goldman21Departamento de Física de Materiales, Universidad Complutense de Madrid, E-28040 Madrid, Spain — 2CENOLI, Faculté des Sciences, Université Libre de Bruxelles (U.L.B.), B-1050 Brussels, Belgium

A powerful method to create effective magnetic fields is to shake a lattice of cold gases trapped in an optical lattice. Typically such schemes produce space-dependent effective masses and non-uniform flux patterns. In this work we try to tackle this problem by proposing several lattice shaking protocols, theoretically investigating their associated effective Hamiltonians and their quasienergy spectra. This allows the identification of novel shaking schemes, which simultaneously provide uniform effective mass and magnetic flux, with direct implications for cold-atom experiments and photonics.

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