Bloch oscillations of cold atoms in two-dimensional optical lattices
نویسندگان
چکیده
Bloch oscillations of cold atoms in two-dimensional optical lattices are studied. The cases of separable and nonseparable potentials are compared by simulating the wave-packet dynamics. For these two classes of optical potential, the Bloch oscillations were found to be qualitatively the same in the case of a weak static field but fundamentally different in the case of a strong field. In addition, the dynamics of the atoms in a double-period potential ~which can easily be realized in two dimensions! is studied for the regime of a weak static field.
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