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Two-axis twisting using Floquet-engineered XYZ spin models with polar molecules
- Source :
- Nature 633, 332-337 (2024)
- Publication Year :
- 2024
-
Abstract
- Polar molecules confined in an optical lattice are a versatile platform to explore spin-motion dynamics based on strong, long-range dipolar interactions. The precise tunability of Ising and spin-exchange interactions with both microwave and dc electric fields makes the molecular system particularly suitable for engineering complex many-body dynamics. Here, we used Floquet engineering to realize interesting quantum many-body systems of polar molecules. Using a spin encoded in the two lowest rotational states of ultracold KRb molecules, we mutually validated XXZ spin models tuned by a Floquet microwave pulse sequence against those tuned by a dc electric field through observations of Ramsey contrast dynamics, setting the stage for the realization of Hamiltonians inaccessible with static fields. In particular, we observed two-axis twisting mean-field dynamics, generated by a Floquet-engineered XYZ model using itinerant molecules in 2D layers. In the future, Floquet-engineered Hamiltonians could generate entangled states for molecule-based precision measurement or could take advantage of the rich molecular structure for quantum simulation of multi-level systems.<br />Comment: 20 pages, 4 figures + 4 extended data figures
- Subjects :
- Condensed Matter - Quantum Gases
Physics - Atomic Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Nature 633, 332-337 (2024)
- Publication Type :
- Report
- Accession number :
- edsarx.2404.18913
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1038/s41586-024-07883-2