Laser system for high-fidelity Ytterbium Rydberg gates
Abstract
Neutral atom arrays are a rapidly developing platform for quantum science, and in particular for gate-based quantum computing. Recently, alkaline earth-like atoms (AEAs), specifically Yb and Sr, have attracted interest because their unique level structure provides several opportunities for improved qubit coherence, gate fidelities and quantum error correction. Over the last several years, leveraging continued DoD support, we have developed a comprehensive approach to universal, fault-tolerant quantum computing using Yb atom arrays. We have demonstrated many of the key components, and also proposed a unique quantum error correction architecture that promises one of the highest known threshold error rates. The purpose of this DURIP application is to make several key upgrades to our experimental apparatus that will allow us to realize higher fidelity gates as well as faster experimental repetition rates and stability. We are requesting funding for an upgrade to our experimental apparatus consisting of three components: a high-power UV light source for faster Rydberg gates over larger areas, an upgraded primary cooling laser to allow for higher experimental repetition rates and uptime, and a multi-channel precision wavemeter to improve our uptime by enabling automatic laser re-locking, which is especially necessary in view of the large numbers of lasers needed to implement metastable qubits and certain aspects of our quantum error correction protocol.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 19, 2023
- Source ID
- W911NF2310094
Entities
People
- Jeffrey Thompson
Organizations
- Army Contracting Command
- Princeton University
- United States Army