Defect-Free Arbitrary-Geometry Assembly of Mixed-Species Atom Arrays.

Phys Rev Lett

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.

Published: February 2022

AI Article Synopsis

  • This text discusses advancements in creating optically trapped atom arrays with different species, which are useful for various quantum applications.
  • It highlights the successful assembly of a two-dimensional array containing two types of Rubidium atoms, specifically ^{85}Rb and ^{87}Rb, demonstrating a high filling fraction for both species.
  • The assembly process involves a sorting algorithm that allows for specific geometries and species ratios, paving the way for improved quantum logic, simulations, and the formation of single molecule arrays.

Article Abstract

Optically trapped mixed-species single atom arrays with arbitrary geometry are an attractive and promising platform for various applications, because tunable quantum systems with multiple components provide extra degrees of freedom for experimental control. Here, we report the first demonstration of two-dimensional 6×4 dual-species atom assembly of ^{85}Rb (^{87}Rb) atoms with a filling fraction of 0.88 (0.89). This mixed-species atomic synthesis is achieved via rearranging initially randomly distributed atoms by a sorting algorithm (heuristic heteronuclear algorithm) which is designed for bottom-up atom assembly with both user-defined geometries and two-species atom number ratios. Our fully tunable hybrid-atom systems with scalable advantages are a good starting point for high-fidelity quantum logic, many-body quantum simulation, and single molecule array formation.

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Source
http://dx.doi.org/10.1103/PhysRevLett.128.083202DOI Listing

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