Quantum Science with Tweezer Arrays
Presented by Manuel Andres, Caltech
A VIRTUAL AMO SEMINAR presented in a Zoom meeting vetted by CQuIC. See https://sites.google.com/stanford.edu/virtual-amo-seminar/schedule for the meeting link.
Cold atoms in optical tweezer arrays have emerged as a versatile platform for quantum science. I will review these developments, including atom-by-atom assembly as a method to generate defect-free arrays  as well as quantum simulation of spin models with Rydberg atoms , followed by a brief discussion of current limitations. Our work at Caltech now merges these directions with control of narrow and ultra-narrow optical transitions in alkaline earth atoms. I will give an overview of new opportunities in this context and recent results from our lab: 1) A record in imaging-fidelity for neutral atoms and demonstration of narrow-line cooling in tweezers [3,4]. 2) Rydberg excitation from a meta-stable clock state, which resulted in leading fidelities for entanglement of two neutral atoms . 3) Demonstration of an optical clock with single-atom detection in tweezer arrays .
 Endres et al., Science 354, 1024 (2016).
 Bernien et al., Nature 551, 579, (2017).
 Covey et al., Phys. Rev. Lett. 122, 173201 (2019).
 Cooper et al., Phys. Rev. X 8, 041055 (2018).
 Madjarov*, Covey*, et al., Nat. Phys. (2020). https://doi.org/10.1038/s41567-020-0903-z
 Madjarov et al., Phys. Rev. X 9, 041052 (2019).
1:00 pm, Friday, August 7, 2020
Zoom, Physics & Astronomy
Northeast corner of Lomas and Yale, Albuquerque, New Mexico
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