Optical tweezer arrays have impacted atomic and molecular physics experiments by simplifying detection and enabling control at the individual-particle level, resulting in rapid, recent progress in quantum computing, quantum simulation, and metrology. Such a platform is based on individual atoms trapped in an array of tightly focused optical tweezers. Harnessing the ability of acousto-optic deflectors (AODs), the randomly loaded neutral atom array can be rearranged into arbitrary configurations, including a defect-free array.

This talk will report a recent progress of tweezer array that traps over 6,100 atomic qubits, an order of magnitude improvement over other existing quantum computing technologies. Meanwhile, this work achieved a vacuum lifetime of 23 minutes at room temperature, 13 seconds coherence time, single-qubit gate fidelity of 99.9834(2)%. This talk will also introduce a neutral atom quantum computing architecture and discuss future development directions for neutral atom quantum computing, such as error correction.

Biosketch

Xudong Lv is currently a research scientist at Caltech. He obtained his bachelor's degrees in physics at Peking University, and his PhD degree at UC Berkeley, where he did research in quantum sensing using NV centers with Alex Pines. His current research interest is atomic array in optical tweezers for quantum applications. He has been recognized as Forbes Asia 30 under 30 for this research in quantum science.

Please contact phweb@ust.hk should you have questions about the talk.