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  • Letter
  • Open Access

Quantum dimer models with Rydberg gadgets

Zhongda Zeng1,2, Giuliano Giudici1,2,3, and Hannes Pichler1,2

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Phys. Rev. Research 7, L012006 – Published 9 January, 2025

DOI: https://doi.org/10.1103/PhysRevResearch.7.L012006

Abstract

The Rydberg blockade mechanism is an important ingredient in quantum simulators based on neutral atom arrays. It enables the emergence of a rich variety of quantum phases of matter, such as topological spin liquids. The typically isotropic nature of the blockade effect, however, restricts the range of natively accessible models and quantum states. In this work, we propose a method to systematically overcome this limitation, by developing gadgets, i.e., specific arrangements of atoms, that transform the underlying Rydberg blockade into more general constraints. We apply this technique to realize dimer models on square and triangular geometries. In these setups, we study the role of the quantum fluctuations induced by a coherent drive of the atoms and find signatures of U(1) and Z2 quantum spin liquid states in the respective ground states. Finally, we show that these states can be dynamically prepared with high fidelity, paving the way for the quantum simulation of a broader class of constrained models and topological matter in experiments with Rydberg atom arrays.

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Phys. Rev. Research 7, L012006– Published 9 January, 2025
  • Received 18 March 2024
  • Accepted 2 December 2024
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