Quantum Science with Neutral Atom Arrays in a Cryogenic Environment
Abstract
Fully isolating 1000Õs of single quantum particles and at the same time introducing tailored interactions between them is the seemingly impossible task faced in quantum information science and computing. Optically-trapped neutral atoms are a fast-advancing platform that is progressing towards solutions to this challenge. In particular, the bottom-up assembly of arrays of single atoms, their individual control, and Rydberg-mediated entanglement have enabled new paths to quantum simulation, computing, and metrology. However, advances could soon slow due to limitations in multiple aspects on quantum coherence. Neutral atom platforms should aspire to the same, and in some areas even better, control than currently aÀord by trapped ions. A unique path for improvement in key metrics is embedding the neutral atoms in a cryogenic system, where atoms can be stored in microscale traps for an hour and blackbody radiation is defined by low temperature environment. We propose here an apparatus that will achieve a cryogenic environment with optical access suitable for neutral atom arrays in optical tweezers. Our cryogenic system will be combined with a set of advances in cooling and trapping that will address near-term challenges in Rydberg-mediated quantum gates. This proposal requests laser equipment for low-noise two-photon excitation of rubidium to the high-lying Rydberg states that will be key to harnessing the cryogenic environment. The impact of this new environment for neutral atoms quantum bits will not only be useful for quantum computing, but a wide range of quantum science with neutral atoms, such as precision clocks based upon optical transitions in alkaline-earth atoms.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 27, 2022
- Source ID
- W911NF2210026
Entities
People
- Cindy A. Regal
Organizations
- Army Contracting Command
- United States Army
- University of Colorado Boulder