A Rydberg Array Quantum Simulator with Rapid Cavity-enhanced Selective Readout
Abstract
The ability to construct a large-scale controllable quantum system, to evolve it through quantum states with high coherence and entanglement, and then to measure it out with complete detail and high fidelity, may lead to revolutionary advances in computation, numerical simulation, and precise measurement and sensing. Arrays of neutral atoms held individually in optical tweezer traps and driven to high-lying atomic states are one of the most powerful and promising approaches to creating such large-scale quantum devices. However, to date, these Rydberg tweezer systems have been limited by the way in which the tweezer arrays are measured. Specifically, the optical imaging methods used to read out the state of each tweezer end up requiring a simultaneous readout of all tweezers within the array, completely extinguishing the entanglement and coherence of the system. This DURIP project supports the development of a new instrument in which it is possible to measure just a selected sub-system of a large Rydberg tweezer system, while the remaining unmeasured sub-system retains its full quantum coherence. This sub-system measurement will be achieved by using a high-finesse optical cavity to perform fast, selective, state-sensitive, and non-destructive measurements of atoms in individual tweezers. The proposed system builds on an existing setup in which such sub-system measurement within a small-scale tweezer array has been just recently demonstrated. The objective of this DURIP project is to provide the equipment necessary to drive atoms up to Rydberg states, so as to introduce strong interactions between atoms in different tweezers; to impose single-qubit gates on tweezer-trapped atoms; to control the coupling of tweezer-trapped atoms to the optical cavity; and to control the overall experimental setup with precise timing control and built-in system calibration. This is a fundamental research project that is not expected to produce any developmental items. Should any developmental items result from this work they will have both civilian and military applications.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 28, 2023
- Source ID
- W911NF2310244
Entities
People
- Dan Stamper-Kurn
Organizations
- Army Contracting Command
- United States Army
- University of California, Berkeley