## Reflectivity for the static potential as a function of *x*_{0}

#### figure

Figures are generally photos, graphs and static images that would be represented in traditional pdf publications.

**Figure 1.** Reflectivity for the static potential as a function of *x*_{0}. Results obtained by integrating the time-dependent Schrödinger equation (filled circles) and by solving the stationary Schrödinger equation (dashed line) are shown. The solid line shows the averages calculated between subsequent maxima by double-geometric averaging.

**Abstract**

We describe an experimentally realistic situation of the quantum reflection of helium atoms from an oscillating surface. The temporal modulation of the potential induces clear sidebands in the reflection probability as a function of momentum. These sidebands could be exploited to slow down atoms and molecules in the experiment.