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New platforms for quantum science with atoms

Nov 16

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Monday, November 16, 2020 - 12:00pm to 1:00pm


Jeff Thompson, Assistant Professor in the Department of Electrical Engineering at Princeton University

Atomic systems are at the frontier of many areas of quantum science and technology, including sensing and metrology, quantum simulation and quantum information processing. In this talk, I will present our work on developing novel atomic systems to advance these applications. In the first part, I will discuss our work with rare earth atom defects in solid crystalline hosts, in particular Erbium (Er3+). In comparison to color centers such as the NV center, rare earth atoms have a number of unique advantages including a high degree of isolation from the solid-state environment, telecom-wavelength photon emission and compatibility with a broad range of host materials. However, owing to their weak photon emission, individual Erbium atoms have never been directly observed. We overcome this challenge by engineering their optical transitions with silicon nanophotonic circuits. In the second part of my talk, I will discuss a new platform for laser-cooled atoms in optical tweezers based on Ytterbium (Yb). Alkali atoms in optical traps are a workhorse platform for quantum simulation, and recent work has shown that excitations to strongly-interacting Rydberg states can be used to realize controllable, high-fidelity quantum logic operations. ZOOM: Passcode: 326944