JILA X317

Abstract: Superfluid helium-4 at millikelvin temperatures is an ideal ac

In the last decade, quantum gas microscopy has emerged as a powerful technique to probe and
manipulate quantum many-body systems at the single-atom level. So far, however, it has only been used for the study of lattice and spin chain physics, prominently to explore the Hubbard model and its generalizations. In this talk, I will present our recent efforts to extend quantum gas microscopy to the study of fermionic many-body systems in continuous space and characterize them at previously inaccessible levels of resolution and control.

Neutral atoms have emerged in recent years as a leading qubit candidate for quantum computing. Atom interferometers, meanwhile, provide precise measurements of very weak gravitational forces. Both of these applications use optical fields to write-in / read-out information, as well as to trap and manipulate the atoms. Optical resonators have been used to enhance such atom-photon interactions, constituting the field of cavity quantum electrodynamics (QED).

Atom interferometers are exquisite sensors that have been used to perform inertial measurements with ever increasing precision. However, many worthy scientific endeavors present dynamically harsh environments and strict SWaP requirements that are challenging to accommodate for conventional atom interferometers. In this defense, I present the novel approach of Bloch-band interferometry, which confines Bose-condensed atoms to a multidimensional optical lattice for the entire interferometer sequence.

In quantum materials, function follows form: the collective behavior of a large ensemble of electrons crucially depends on the structure of the ionic crystal they inhabit. Ultracold fermionic atoms in optical lattices are a unique platform to understand such emergent phenomena by providing a very clean realization of the Hubbard model, one of the most fundamental models describing strongly correlated quantum matter. Yet, realizing and probing structures inspired by solid-state materials is a challenge beyond simple square geometries.

Abstract: 

Reception to follow talk in the h-Bar.

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