Scaling up Atom Arrays

Abstract

Reconfigurable atom arrays are a promising platform for the scalable control of individual qubits for quantum computation and simulation. In this talk, the speaker will discuss the limits to scaling up atom arrays and present a solution involving the operation of tweezers at a D1 magic wavelength. Unlike D2 magic wavelengths that only exist for cesium, D1 magic wavelengths have been predicted to exist for all the alkali atoms but are not yet observed to date. She will report an order-of-magnitude increase in scaling up sodium atom arrays with her new technique. She will also present her recent results on achieving defect-free arrays of hundreds of atoms on a second experiment. Finally, she will briefly discuss different routes to inducing programmable interactions between the singly-trapped particles with an eye towards future quantum simulation experiments.

About the speaker

Prof. LOH Huanqian obtained her PhD from the University of Colorado Boulder and joined the National University of Singapore as the President's Assistant Professor of Physics and Principal Investigator at Singapore Centre for Quantum Technologies in 2017. She leads a research group that aims to use optical tweezer arrays of atoms and molecules like reconfigurable quantum simulators to mimic advanced materials.

Prof. Loh’s research focuses on advanced materials like superconductors. Her lab tried to understand the dynamics of superconductors by using reconfigurable atom arrays, which can be controlled at the single-particle, single-quantum-state level and assembled like quantum Lego blocks to mimic these advanced materials by quantum simulation.

Prof. Loh was recognized as a L’Oréal-UNESCO For Women in Science International Rising Talent in 2020, a World Economic Forum Young Scientist in 2019, and a Singapore National Research Foundation Fellow (Class of 2018). She also serves on the World Economic Forum Global Future Council for Quantum Applications.

For Attendees' Attention:

This talk will be held online via Zoom. To join the talk online, please join the Zoom meeting at https://hkust.zoom.us/j/96765525125 (meeting ID: 967 6552 5125 / Passcode: 951073).

About the center

For more information, please refer to the center website at https://iascqt.hkust.edu.hk/.