Few-Body Analog Quantum Simulation with Rydberg-Dressed Atoms in Optical Lattices

• Main Authors: Cirac, J.I (Author), Malz, D. (Author)
• Format: Article
• Language: English
• Published: American Physical Society 2023
• Subjects: Atoms; Contact interaction; Crystal lattices; High-fidelity; Interacting particles; Optical lattices; Optical materials; Pseudoatoms; Quantum chemistry; Quantum simulations; Rydberg; Simple++; Strong interaction; Ultracold atoms; Unit cells
• Online Access: View Fulltext in Publisher; View in Scopus

 Most experiments with ultracold atoms in optical lattices have contact interactions and therefore operate at high densities of around one atom per site to observe the effect of strong interactions. Strong ranged interactions can be generated via Rydberg dressing, which opens up the path to exploring the physics of few interacting particles. Rather than the unit cells of a crystal, the sites of the optical lattice can now be interpreted as discretized space. This allows the study of completely new types of problems in a familiar architecture. We investigate the possibility of realizing problems akin to those found in quantum chemistry, although with a different scaling law in the interactions. Through numerical simulation, we show that simple pseudoatoms and pseudomolecules could be prepared with high fidelity in state-of-the-art experiments. © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.