QF Fellow and Associate seminar: Eber Nolasco-Martinez

Continuous Trapped Atom Interferometry with Magic Floquet-Bloch Bands 

Abstract: I am a graduate student in David Weld's group working on the Lithium experiment, where we explore the dynamics of ultracold atoms in a driven optical lattice. In this talk I will discuss how we use AMO techniques to cool down Lithium to nK temperatures and perform simulation experiments in optical lattices. I will also talk about our recent results in utilizing an amplitude-modulated lattice to build a continuously trapped interferometer, where by having atoms Bloch oscillate and enter a superposition of two bands, we can observe spatial separation and use the interference of the two arms as a local force sensor. In addition,we can use multiple frequencies in our drive to tune and control our bands to modify. their properties and the sensitivity of our interferometer. This experiment lies in the interface of condensed matter ideas and precision measurement techniques, showing how interrelated ideas can connect to improve technology.