Fast and Scalable Quantum Information Processing with Two‐Electron Atoms in Optical Tweezer Arrays
Abstract
Atomic systems, ranging from trapped ions to ultracold and Rydberg atoms, offer unprecedented control over both internal and external degrees of freedom at the single‐particle level. They are considered among the foremost candidates for realizing quantum simulation and computation platforms that can outperform classical computers at specific tasks. In this work, a realistic experimental toolbox for quantum information processing with neutral alkaline‐earth‐like atoms in optical tweezer arrays is described. In particular, a comprehensive and scalable architecture based on a programmable array of alkaline‐earth‐like atoms is proposed, exploiting their electronic clock states as a precise and robust auxiliary degree of freedom, and thus allowing for efficient all‐optical one‐ and two‐qubit operations between nuclear spin qubits. The proposed platform promises excellent performance thanks to high‐fidelity register initialization, rapid spin‐exchange gates, and error detection in read‐out. As a benchmark and application example, the expected fidelity of an increasing number of subsequent SWAP gates for optimal parameters is computed, which can be used to distribute entanglement between remote atoms within the array.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 11, 2019
- Source ID
- 10.1002/qute.201800067
Entities
People
- Francesco Scazza
- Guido Pagano
- Michael Foss‐feig
Organizations
- Air Force Office of Scientific Research
- Army Research Office
- Intelligence Advanced Research Projects Activity
- Marie Skłodowska-Curie Actions
- National Science Foundation
- United States Army Research Laboratory
- University of Florence
- University of Maryland