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Center for Astrophysics Research and Technologies Seminar Series Information


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Quantum Science with Tweezer Arrays

Friday August 7, 2020
1:00 pm

 Presenter:  Manuel Andres, Caltech
 Series:  CQuIC Seminars
 Abstract:  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 [1] as well as quantum simulation of spin models with Rydberg atoms [2], 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 [5]. 3) Demonstration of an optical clock with single-atom detection in tweezer arrays [6].

[1] Endres et al., Science 354, 1024 (2016).

[2] Bernien et al., Nature 551, 579, (2017).

[3] Covey et al., Phys. Rev. Lett. 122, 173201 (2019).

[4] Cooper et al., Phys. Rev. X 8, 041055 (2018).

[5] Madjarov*, Covey*, et al., Nat. Phys. (2020). https://doi.org/10.1038/s41567-020-0903-z

[6] Madjarov et al., Phys. Rev. X 9, 041052 (2019).
 Host:  Ivan Deutsch
 Location:  Zoom

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