Assembled Hubbard Systems of Alkaline-earth Atoms

Lukin Yelin

Theo joined the Kaufman group after completing a degree in Physics and Computer Science at Harvard University. After taking a year to work in Cybersecurity research and development after graduating, he decided fighting fundamental forces of nature was more fun than fighting hackers. During his undergraduate studies, he worked with professor Markus Greiner and the Atom Array lab on his thesis project to use a combination of AOMs and SLMs to enable ultra-fast phase-stable pattern generation for laser light.

Our recent manuscripts from the Strontium experiment have been published!

Teaser

Our recent manuscripts on tweezer programmable quantum walks and optical clock Bell states were published in Science and Nature Physics. You can read more about these experiments here. 

Both of these experiments relied on some new technology we developed for interfacing optical tweezer arrays and optical lattices. This approach was recently highlight here, in a piece by Giulia Semeghini. 

Oppong

Nelson joined the lab in September 2022 as a Humboldt postdoctoral fellow. He obtained his Ph.D. from the Bloch group at LMU in Munich, where he worked on ultracold ytterbium quantum gases in optical lattices. For his thesis work, he explored how the clock state of ytterbium can be employed for the simulation of interesting multiorbital models from solid-state physics.

Cao

Alec completed his undergraduate studies at UC Santa Barbara. He began in research working on a collaboration between Professors David Weld and Ania Jayich, constructing a UHV apparatus for studying surface decoherence of nitrogen vacancy centers. He then transitioned to the Weld lab’s ultracold lithium-7 apparatus, investigating transport dynamics and many-body chaos in Floquet lattice systems.

Assembled Hubbard Systems of Alkaline-earth Atoms

Another appealing aspect of alkaline-earth atoms is the presence of a second relatively narrow transition — though not as narrow as the clock transition — that can be used for ground-state laser cooling. This is especially powerful when combined with the possibility of rearranging optical tweezers to prepare arbitrary atomic distributions with very low entropy in the atomic spatial distribution. So far, large-scale demonstrations of atomic rearrangement have been used for spin models, with atoms that might be relatively hot in their motional degrees of freedom.

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